Reasonsforloss
BecauseofGFWandotherreasons,themailcommunicationbetweenChinaandforeigncountrieswasmiserable.Itcanbesaidthatthereturnorlossofoverseasmailiscommonplace.Inthefaceofthissituation,thereareseveralmanifestations:
1.Self-builtserversofenterprises:Thereisnowaytodealwiththissituation.Canonlyconsiderchangingtheoutsourcingmethod,orcontinuetoendure;
2.Non-professionalmailserviceproviders:Theygenerallydonotinvestinoverseasserversforprocessing,orinvestinoverseasservers,bothintermsofabilityandtechnology.Weak(suchasnoencryption,nosmartDNS),whichcannoteffectivelysolvetheproblemofoverseasforwarding
3.Overseasforwarding:Weuseourowndeliverytechnology,combinedwithencryption,smartDNSandotherprocessing,sothatoverseasmailcanreachThebestlevelinthecountry.
Relatedtools
Rishiqingisacorporateofficesystem,includingcorporatemailboxes.
Iworkisacorporatemailboxsystem.
Reasonsforunblockedtraffic
Mailssentoverseas,ormailssentbyoverseasuserstoChina,areoftenunreceived,halfinterrupted,usersarenotlocal,etc..
Thesesituationsaremainlyduetothefollowingreasons:
1.Thenetworkiscongestedbetweendomesticandinternational,orthenumberofhopsistoomany,andthetransmissioncannotbetransmitted;
2.Rejectedbysomeforeignoperators;
3.Causedbyinternationalexporterrorsbetweendomesticandforeigncountries.
(Thecurrentsituationof3hasahugeimpactonusers'overseasmailsendingandreceiving.Generalusersandoperatorsareunabletosolveit.)
Howtobuildityourself
FrequentlyAskedQuestions
1.Ifeelthatthefunctionsofthemajormailsystemsaresimilar
Enterprisemailboxusersdonothaveclearmailrequirements,andnetworkadministratorsoftenfeelthatthemajormailsystemshavesimilarfunctionsandunevenprices.Thereisnowaytojudgewhethertheperformanceisgoodorbad,andtheselectionisevenmorevolatile.
2.Idon’tknowhowtotestthestabilityofthesystem
Forthetestunderthezero-maildataenvironment,whetheritisaninternalnetworkfunctiontest,apublicnetworktest,oranaccountopeningforuserstouse,Itisimpossibletotestthesystemstabilityinashortperiodoftime,anditisimpossibleforthecompanytospendmonthsorlongeronaprojectwaitingforyoutoselectandtest.
3.Systemsecuritycannotbeverified
ThecompanyusesanewdomainnameornewIPtotestthemailsystem,andthenewdomainnamehasnotbeendetectedduetospammers,hackersorworms,orTheexistenceofIPdoesnotattackthesystem,andthesecuritytestislikeapieceofwhitepaper,whichcannotbestudied,letalonethesecuritytestofsystemtheftissues,mailbombs,etc.
4.Canitmeetthecompany'sfollow-upemailneeds?
Manycompaniesoftenhavebeenontheemailsystemforaperiodoftimebeforeusersfeedbackvariousemailneeds,evenincludingsomepersonalizedcustomizationservicerequirements.Whetherthemanufacturercanmeetthecompany'sfollow-upemailneedsandwhetherithastheconditionstocontinuouslyupdateandupgradethesystemoftendirectlyaffectsthenumberofyearsthecompanycanusethesystem.
5.After-salesservice
Professionalandefficientafter-salesservicedirectlyguaranteesthelong-termstableoperationofthemailsystem.Formanufacturersthathavenotcooperated,companiesoftenneedtoverifyfrommultipleparties.
Selectionandtesting
Acomprehensiveandprofessionalsolutioncanhelpcustomerswhobuildtheirownmailsystems,howtoselect,howtotest,andhowtotaptheirpotentialmailneeds,Inordertofindaproductwiththehighestcostperformance.
1.Functiontest
1)Lookatthequotation
2)Thedifferentdegreeanddepthofrealizationofthesamefunction
ThisdirectCheckthelevelofdetailofproductperfection.Manydetailedfunctionsmaynotbeusedtemporarily,buttheyarenotfoundwhentheyareused,whichmeansthattheoriginalselectionandtestingworkwasnegligent.
2.Systemstabilitytest
3.Securitytest
1)Enterprisescansetupsomeemailaccounts(simplepasswordsarerecommended)andpublishthemtotheInternetOnline,suchasBaidu,Tianya,majorforums,etc.Afteraperiodoftime,thecompany'stestmailsystemwillgraduallyreceivesomespam.Ifthemailboxpasswordissimpleanditiseasytobestolen,itwillbecheckedagainwhetherthesystemhasaperfectpreventionandresolutionmechanismforsuchproblems.
2)Askthemanufacturerwhethertoprovideautomaticupdatesoftheanti-spamrulebase,andwhetherthereisananti-spamservermaintained.Basically,therearemanufacturerswhodotheirownanti-spamservers,andthecostisrelativelyhigh.
4.Askiftherearerelayserversplacedoverseas
Themainpurposeofrelayserversistosolveoverseasproblems.Fortheproblemofmaildeliveryfailure,onlyoneortwocannotguaranteethesuccessrateofoverseasmaildeliveryforallcustomersoftheenterprise.
5.Manufacturer'ssystemupdatecapability
Users'needsareoftengraduallytappedintheprocessofusingthemailsystem,andmanufacturersshouldbeabletoprovidecontinuousdevelopmentofsystemupdateservices.Customerscanfindthemanufacturer'sinvestmentinsystemresearchanddevelopmentfromthesidefromthemanufacturer'sproductconcept,futureproductdevelopmentdirection,andpastproductupdatefrequency.
Cloudcomputing
Howhascorporatemailboxeschangedinthecloudcomputingera?Firstlookatthesituationabroad.
GoogleAppsandZimbraaretworepresentativeservicesinthemailfield.ForGoogleApps,thereisnoneedtosaymuch.Judgingfromthenameofthisserviceline,GoogleAppsforBusinessisnotoriginallyintendedtobelimitedtothescopeofamailboxservice.Allservicelinesonitinclude:Gmail,GoogleAppsSync(applicationsynchronization),GoogleCalendar,GoogleContacts,GoogleContactssynchronization,GoogleDocs(thatis,thefunctionoftheOfficethreesuite),GoogleGroups(similartoforums,withmailGroupfunction),Googlewebsite(similartoacorporateportal),GoogleTasks,GoogleVideo,GoogleAudio,GoogleWave(allthreeareinstantmessagingservices),GoogleAnalytics,andGooglePlus(socialnetwork).
Zimbrastartedin2005.Atthebeginning,itfocusedonthe"opensourcecollaborationsuite".Atthattime,itwaspositionedasareplacementforExchange.Itnotonlyhadmail,butalsointegratedsearchandarchiving.Anti-spamandanti-virusfunctions,andallfront-endoperationscanbeperformedinthebrowser.Zimbranotonlyprovidesserverapplications,butalsoprovideshostingservicesthroughthird-partypartners,andthemostpraisedisitsvariousopenAPIinterfaces.
In2007,Yahoo!spentUS$350milliontoacquireZimbraunderitsumbrella.Itwasoriginallyintendedtouseittocounterattackinthemailfield.However,afterthreeyears,itwassoldtoVMware.Astheleaderofthevirtualizationfield,VMware'sacquisitionofZimbraisaverydelicatematter,becauseVMwareisveryspecificinthisfield,andallkindsofinvestmentaretofurtherconsolidateitspositioninthevirtualizationfield.ThefunctionsoftheZimbrasuitealsoincludecontactmanagement,groupcalendars,documentsharing,mobileclients,etc.Sincetheunderlyinglayerisbasedonvirtualizationtechnology,variousservicescanbepurchasedanddistributedaccordingtothenumberofusersandthetimeofuse.Flexibleon-demandpurchaseisoneofthecharacteristicsofcloudcomputing.
Severaldomesticcorporatemailboxesaregraduallytakingonmoreroles.ManyofthecorporatemailboxservicesofNetease,139,andotherportalsarebuiltbasedontheCoremailmailsystem,andCoremailwasoriginallyacommercialmailsystemdevelopedonthebasisofPostfix.Speakingofit,Coremail’srelationshipwithseveralportalenterprisemailboxservicesisthesameastherelationshipbetweenZimbraandDomainHostandotherhostingserviceproviders.Itistherelationshipbetweenthemailsystemandthehostingparty.However,thecompanybehindCoremail,Yingshi,alsorunsShangEasycorporatepostofficeisequivalenttodoingsystemandhostingatthesametime.
However,simplypurchasingservicesbasedonthenumberofusersandthetimeofuseisfarfrommeetingtheneedsofenterprises.Indifferentindustries,companiesneedtointegratetheiremailsystemswiththeirownCRM,ERPandotherbusinesssystems.Inthisregard,MicrosoftExchange+SharePointcanfindmanypartnerstoachievethis,butforsmallbusinesses,itisstillpowerless.ForGoogleAppsusers,userscanchooseamongtheseseveralGoogleapplications.Forexample,turningoffthevideocallfunctioncansavealittlemoney,butthismethodstillcannotmeettheneedsofmanycompanies.
Howshouldsmallandmedium-sizedenterprisesmeettheirneedsforcustomizedmailboxservices?Customizationalwaysrequiresinvestmentinthedevelopmentprocess,andmostsmallandmedium-sizedenterprisesinnon-technologicalindustrieswillnothavesuchresources;itisokayforsmallandmedium-sizedenterprisestopayforsuchcustomization,buttheamounttheyarewillingtobearisdefinitelylimited.
However,ifthemailserverhasacooperativerelationshipwiththeapplicationthatneedstobecustomized,theprogressofthematterwillbemucheasier.Forexample,thecooperationbetweenCoremailandYonyouWeikumaybringsomerelativelyconventionalsolutionstothemutualcustomersofbothparties.Imo,whichprovidesinstantmessagingtoolservices,isalsocooperatingwithCoremail.Ifthedegreeofcompletionishigh,itisnotimpossibletoachievethefunctionsofExchange+Lync.
Thenwhatneedstobedoneistoimplement"on-demanddistribution"ofthesemodularfunctions,whichcanbecalledacloudcomputingenterprisemailboxservice,oracloudcomputingenterprisecollaborativeofficeservicesuite.YingshispecificallyopenedaniCoremailproductlineforthisidea,providingthiskindofcustomizablehostingservice.
Testselection
Functiontest
1)Lookatthequotation
ThelistoffunctionsincludedinthequotationprovidedbydifferentmanufacturersisThedifference,suchasTurboMail,adomesticcorporatemailboxbrand,iscomprehensiveandcost-effectivecomparedtoothercorporatemailboxes.
2)Differentdegreesanddepthsofthesamefunctionrealization
ThecorefunctionmodulesofTurboMailproducts:
1.PCcomputerWebmail2.Mobilemail3.WebAdmin4.SMSinterface5.Anti-spamengine(TurboGatePro)6.Anti-virusmailengine(ClamAV)7.Advancedrelay8.StandardAPIdevelopmentkit9.Mailinglist10.Mailintelligentfiltering11.Sendingandreceivingrestrictionmanagement12.Systemmonitoring13.Systemlog14.Statisticalanalysis
TurboMailvalue-addedfunctionmodule:
15.Systembackup16.Organizationmanagement17.Enhancedversionannouncement18.Mailmonitoring19.Multi-levelmailAudit20.Authoritymanagementplatform21.Mailtrackingwithdrawal22.Schedule23.Networkharddisk24.Mailtransferstation25.Outlookaddressbooksynchronizationconnector26.Mailgreetingcard27.Corporatestationery28.Voiceandvideomail
StabilityTest
Thestabilityofthesystemcanonlybeverifiedthroughusertestsorstresstests.Itisrecommendedthatcustomersconductastresstestofthemailsystemandaformaltrialoftheproductionlinkafteralotofresearch.Ofcourse,testingisbestfree,soastoreduceprocurementrisks.Forexample,TurboMailcorporateemailwillprovidecustomerswithfreestresstestingtoolstoassistcustomersinthetest.Thistypeofemailcompanynaturallyhasamuchbetterreputation.
Protocoldifference
Intermsoffunctionalone,IMAPserviceissimilartothewidelyusedPOP3,whichisamailacquisitionprotocol,buttheIMAPprotocolismoreadvancedthanthePOP3protocol.ThemaindifferencewiththePOP3protocolisthattheuserdoesnotneedtodownloadallthemails,butcandirectlyoperatethemailontheserverthroughtheclient.Theusercandecidewhethertoreceive,deleteandretrievespecificpartsofthemailbybrowsingtheheaderofthemail.Youcancreateorchangefoldersormailboxesontheserver.InadditiontosupportingtheofflineoperationmodeofthePOP3protocol,italsosupportsonlineanddisconnectedoperations.Itprovidesuserswiththefunctionofselectivelyreceivingmailfromthemailserver,server-basedinformationprocessingfunction,andsharedmailboxfunction.TheofflinemodeofIMAP4isdifferentfromPOP3.Itdoesnotautomaticallydeletethemailsthathavebeentakenoutonthemailserver.Itsonlinemodeanddisconnectedmodealsousethemailserverasa"remotefileserver"foraccess,whichismoreflexibleandconvenient.Forexample,anemailsentfromtheiPhone4willalsoappearinthesentemailsoftheiPadandLightningMail.IfPOP3isused,thereisnosuchfunction.Allmailsaredownloadedlocally,andalloperationsonlyaffectlocalmails,andcannotbesynchronizedtothemailserverorotherclients.
Thedifferencebetweenmailboxes
1.Corporatemailboxes-differentfrompersonalmailboxes,itismoresuitableforenterprisebusinessapplications!
2.Thebenefitsitprovidestothecompany:
A.Itfullyreflectsthecorporateimagewiththecorporatedomainname(suchasabc#com)asthemailboxsuffix,andallemployees’mailboxesare"abe@Enterprisedomain”,toestablishaunifiedcorporateimageandfacilitatecorporateimagepromotion.Theemailusernamecanbetheemployee’sname,whichiseasytoremember.
B.Overcomingtheimpactofemployeeturnover.Whenemployeesleave,thecorporatemailboxcanberecoveredsmoothly,therebyretainingandcontinuingallbusinesscontacts.Ifthepersonalmailboxisusedfordailywork,theemployeewillnotturninafterleavingthejob,andthecustomermaystillcontacthispersonalmailboxandbetakenawaytogether.
C.Itisconvenientforenterprisemanagement.Itispossibletoopenenterprisemailboxesindependentlyaccordingtotheneedsoftheenterprise,freelynaming,assigningcapacity,grouping,grouping,settingfunctionrestrictions,etc.,tofacilitatetheunifiedmanagementoftheenterprise.
D.Enhanceinternalinformationcommunicationandcollaborativeofficecapabilities.Usesomeadvancedfunctionsoftheenterprisemailboxtoautomaticallysortincominglettersandautomaticallyanswercommonconsultationquestions,improveworkefficiency,andenhanceinternalinformationcommunicationandcollaborativeofficeability.
E.Bettersecurity,stabilityandservicequalitythanpersonalmailboxes.Corporatemailboxesarefarhigherthanpersonalmailboxesintermsofsecurity,stability,anti-virusandanti-spamfunctions,andhavespecialafter-salesservices.Support,servicequalityismoresuitableforenterprisebusinessapplications.
F.Itishelpfulforonlinepromotionandproductpromotion.Whenyoureceiveanunfamiliaremail,queryingthewebsitebasedonthedomainnameoftheletterisagoodwaytogettoknowtheotherpartyinitially.Withthecorporatemailbox,itiseffortlesstoincludeitindailycommunications.
ThecurrentmaximumcapacityofG,corporatemailboxeshasreachedunlimitedstorage,whichisincomparabletopersonalmailboxes
H,othervalue-addedservices:mobilephonesendingandreceivingmail,advancedanti-spamandanti-virus,mailarrivalSMSnotification,emailfax,emailmonitoring,emailbackupandrestoration,etc.
3,howtousethemailbox
(1),howtologintothemailbox:
SuccessfullyapplyforabusinessAfterthemailbox,pleasepayattentiontothesuccessfulnotificationoftheenterprisemailboxsentbytheHumanitiesOnlineSystem.Afterthedomainnameresolutiontakeseffect,youcanaccessthe"mail."yourdomainname,enterthe"EnterpriseEmailCenter",sendyouthewebmasterusernameandpassword,andloginYourbusinessemailaddress.
Features
1.Highmailboxstability;
2.Mailboxsendingandreceivingspeedisfast;
3.Thereisanoverseasforwardingserver;
4.Thereisamailboxmonitoringfunction.
5.E-mailblacklistissuesarehandledquickly.
AdvantagesandFeatures
Whataretheadvantagesofcorporatemailboxesthatmakeitoccupyanimportantpositioninbusinessoperations?
Promotecorporateimage
Acorporateemailwithacorporatedomainnamesuffixisnolessimportantthanacorporatewebsite.Ithelpscompaniesbuildanadvancednetworkimageandisthesourceofcorporateidentity.AnotherimportantwaytopromoteandpublicizecorporateimageontheInternet.Contactingcustomerswithcorporateemailscanhaveapowerfulbrandpromotioneffect.Customerscanlearnaboutcorporatewebsitesthroughtheiremailsuffixesandlogontothewebsitetolearnmoreaboutcorporateinformation.Whencommunicatingwiththeoutsideworldwithauniformcorporatemailbox,thecompanycangivepeopleasenseofscaleandinternationalization,therebyfurtherenhancingthecorporateimageandincreasingthetrustofcustomers.
Easytomanage
Enterprisescansetuptheirownadministratorstoallocateandmanagethemailboxaccountsofinternalemployees,andsetthemailboxspace,categoryandItbelongstothegroup,andcanaddordeleteusersatanytimeaccordingtothedevelopmentstatusoftheenterprise.Whenanemployeeleaves,thecompanycanrecyclethemailboxandsavethebusinesscommunicationinformationinthemailbox,therebyensuringthecontinuityofbusinessactivities.
Widerangeofapplications
Enterprisepostofficeandwebsiteconstructioncanbecarriedoutseparately,aslongasyouapplyforatop-leveldomainname(domesticorinternationaldomainname),youcanbuildyourowncorporateemailsystem.Someenterprisesthataretemporarilyunnecessaryorhavenoconditionstobuildawebsitecanalsoentertheinformationmanagementstageinadvance.Ofcourse,companiesthathaveestablishedawebsiteneedacorporatepostofficeevenmore.
E-mailsendingandreceivingisconvenient
EnterprisemailboxescangenerallysendandreceiveemailsthroughWEBandclientsoftware,andgenerallysupportstandardEMAILprotocolssuchasPOP3/SMTP,andsupportOutlook,Foxmail,etc.Mostmailclientprogramsmeetdifferentuserhabitsandmaketheuseandmanagementofe-mailmoreconvenient.
Anti-spam
Theincreasinglyrampantspamhasseriouslyaffectedtheenterprise'snetworkapplicationactivities.Enterprisemailboxesuseprofessionalanti-virusandanti-spamsystemstoensurethatenterprisesobtaingreenmailcommunicationservices.
Professionaltechnicalservices
Asoneofthebasicwaysforenterprisestoconductdomesticandforeignaffairsandbusinesscommunication,theirsecurityandstabilitywillbemoreimportanttothebusinessactivitiesoftheenterpriseImpact.Theenterprisemailboxserviceproviderhasprofessionalequipmentandaprofessionaltechnicalteam,whichcanprotecttheenterprisedataandbusinessinformationinthecommunicationprocesstothegreatestextent.Theserviceprovidershouldsetupasecuritysystemforthecorporatepostoffice.ThepreventivemeasuresincludeGigabitfirewall,anti-denialofserviceattackequipmentandNORTONviruscontrolcenter;inprotectingsystemdataanduserfiles,speciallydesignedRAID,diskThemulti-levelredundantbackupsystemincludingarrays,tapelibraries,andoff-sitestorageensuresthatdataisfoolproof;atthesametime,anintelligentanti-spamsystemisadoptedtointerceptandfilterspambymorethan95%.
Lowprice
Theannualfeeforrentingcorporatemailboxesisgenerallybetweenafewhundredyuanandtensofthousandsofyuan,whichcanbeusedbyafewtohundredsofemployees,butthepriceislow.Professionalmailboxtechnologyandsystemsecurityguaranteesaremuchmorevaluablethanusingfreemailboxes,anditismuchmorepracticalthanacompany'splantoinvestalotofmoneytobuilditsownmailservicesystem.
Precautions
1.Whereisthemailboxserverlocated?Isitsafeandstable?
2.Isthecorporatemailboxsafeandstable?
3.Logontotheofficialwebsitetocheckwhichcertificatestheyhave?
4.IsthereanationalauthoritysafetycertificationEAL2?
5.Howistheserviceattitude?
6.Oncethereisaproblemwiththemailbox,canitbesolvedintheshortesttime?
7.Canthemailboxfunctionmeettheneedsofthecompany?
8.Canthepriceofmailboxmeetthecurrentsituationofthecompany?
Settingsteps
(1),needtomodifytheMXrecordofthedomainname:
(2),needtomodifytheArecordofthedomainname:
(3)Checkaftermodification
Largeinventory
Currentlypopularself-builtenterprisemailboxsoftwareisgenerallybasedonWeb,POP3,IMAP4,SMTPandESMTPprotocole-mailManagementplatform,whichcanprovideenterpriseswithafullyfunctionalandhigh-performanceenterprisemailboxsystem.Thesupportofvirtualdomainallowsusersnotonlytoaccesstheirownemailswithtraditionalemailclients,butalsotoaccessandmanagetheirmailboxeswithabrowseratanytimeandanyplace;automaticemailcollection,forwarding,andreplyfunctionsareprovidedforusersUsinge-mailprovidesgreatflexibilityandconvenience.Herearesomecommonlyusedself-builtenterprisemailboxserversoftwareforyourreferencewhensettingupamailserver.
Postfix
Postfixisdesignedtoensurethereliabilityoftheprogramevenunderexcessiveload.Postfixisstructuredbymorethantensmallsub-modules.Eachsub-modulecompletesspecifictasks,suchasreceivingamessagethroughtheSMTPprotocol,sendingamessage,deliveringamessagelocally,rewritinganaddress,andsoon.Postfixusesmulti-layerprotectionmeasurestopreventattackerstoprotectthelocalsystem.Postfixismorethanthreetimesfasterthansimilarserverproducts.AdesktopcomputerwithPostfixcansendandreceivemillionsoflettersaday.
Postfixdesignuseswebserverdesigntechniquestoreduceprocesscreationoverhead,andusesotherfileaccessoptimizationtechniquestoimproveefficiency,butatthesametimeensurethereliabilityofthesoftware.ThedesigngoalofPostfixistobecomeareplacementforSendmail.Forthisreason,manypartsofthePostfixsystem,suchasthelocaldeliveryprogram,canbeeasilyreplacedbyeditingandmodifyingconfigurationfileslikeinetd.
Sendmail
Nomatterfromthewiderangeofuse,orfromthecomplexityofthecode,sendmailisaverygoodsoftware.Ifyouuseittobuildawebsite’semailsystem,youdon’thavetoworryaboutit,becausealmostallUnix’sdefaultconfigurationshavethissoftwarebuiltin.Youonlyneedtosetuptheoperatingsystem,anditcanrunimmediately.InUnixsystems,Sendmailisthemostwidelyusede-mailserver.Itisafreesoftwarethatcansupportthousandsorevenmoreusers,anditoccupiesverylittlesystemresources.
However,theconfigurationofSendmailisverycomplicated,anditssecurityisnotverygood,mainlybecausethenumberofearlyInternetusersandthenumberofemailsarequitesmall,andthesystemstructureofSendmailisnotsuitableforlargerloads.Forahigh-loadmailsystem,Sendmailneedstobeadjustedcomplexly.
Qmail
Qmailisdividedintodifferentmodulesaccordingtothesystem.Someareresponsibleforreceivingexternalmail,somearemanagingmailqueuesinthebufferdirectorytobesent,andsomearesendingmailtoTheremoteserverorlocaluserisdesignedbasedonthisprinciple.Qmailisdesignedtosolvethesecurityproblemofsendmail,andtheentiresystemstructurehasbeenredesigned.Specialconsiderationisgiventosafetyissuesinthedesignandimplementation.TheconfigurationofQmailisinconsistentwithSendmail,soitisnoteasytomaintain.Moreover,themeaningofQmail'scopyrightlicenseisveryvague,anditisnotevenreleasedwiththesoftware.
AccordingtothemodulardesignmethodofUnixthinking,Qmailhashigherperformance.Qmailalsoprovidessomeveryusefulfeaturestoenhancethereliabilityofthesystem.Inaddition,Qmailalsohassomeveryuniquefeatures.NotonlydoesitprovideawaythatiscompatiblewithSendmailtohandleforwarding,aliasingandothercapabilities,butitcanalsobeusedtoprovidethesefunctionsinacompletelydifferentwaywithSendmail.
SUN’siPlanetMessagingServer
iPlanetMessagingServerisapowerful,reliable,andlarge-capacityInternetmailserverdesignedforenterprisesandserviceproviders.MessagingServerusesacentralizedLDAPdatabasetostoreuser,group,anddomaininformation.Itsupportsstandardprotocols,multipledomainnamesandWebmail,withstrongsecurityandaccesscontrol.
AsanopenandextensibleInternet-basedhigh-performancecarrier-classcommunicationplatform,iPlanetMessagingServercansupporttensofmillionsofusers.Itsmainfeaturesincludeauthorizationmanagement,virtualhostandvirtualdomain,powerfulfunctionsandeasytoexpand.Operatorswillbenefitfromthevalue-addedservicesprovidedbytheirintegratedinformationservicesystemsincludingmail,wirelesstechnology,andintegratedinformation.
Intermsofuserexperience,WebMailuserscanputtheirpersonaladdressbookontheServer,sothatonlyasinglebrowserontheclientsidecanensurethattherequiredaddressinformationcanbequeried.Intermsofopenstandardsupport,iPlanetMessagingServercomplieswithInternet-recognizedopenstandardprotocols.ItsMTA(messagetransferagent)providesafriendlyapplicationprogramminginterfaceAPI,whichisconvenientforoperatorsorthirdpartiestodeveloptheirownservicecontent.Intermsofprovidingtelecommunicationservices,iPlanetMessagingServerMTAhasamodularhigh-performancearchitecturethatcanhandlevariousdatatypes.Theoptimizedmulti-threadedstructuredesignbringsthelargestamountofinformationprocessingandisanidealchoiceforlarge-scalemailsystems.
MicrosoftExchangeServer
MicrosoftExchangeServerisamainintranetcollaborationapplicationserver,suitableforuserswithvariouscollaborationneeds.ThestartingpointoftheExchangeServercollaborativeapplicationistheindustry-leadingmessageexchangefoundation,whichprovidestheindustry'sstrongestscalability,reliabilityandsecurity,andthehighestprocessingperformance.ExchangeServerprovidesrichcollaborationapplicationsincludinge-mail,meetingscheduling,groupschedulemanagement,taskmanagement,documentmanagement,real-timemeetingsandworkflows,andallapplicationscanbeaccessedthroughanInternetbrowser.
ExchangeServerisawell-designedmailserverproductthatprovidesallthemailservicefunctionsusuallyrequired.InadditiontoregularSMTP/POPprotocolservices,italsosupportsIMAP4,LDAPandNNTPprotocols.TherearetwoversionsofExchangeServerserver.ThestandardversionincludesActiveServer,networknewsserviceandaseriesofinterfaceswithothermailsystems;theenterpriseversionincludesthefunctionsofthestandardversion,aswellastheintegrationwithIBMOfficeVision,X.400,VMandSNADSCommunicatione-mailgateway,ExchangeServersupportsWebbrowser-basede-mailaccess.
Domino
TheDominomailserverprovidesaunifiedsystemthatcanbeusedfore-mail,Webaccess,onlinecalendarandgroupscheduling,collaborativeworkspace,bulletinboardsandnewsgroupservicesstructure.FromLotusNotestoWebbrowsers,toOutlookandPDAs,unparalleledmobilefunctionsandsupportforawiderangeofclientsenableuserstosendandreceiveinformationsecurelyanytime,anywhere.
TheDominomailservercanrunonthecompany'sexistinghardware,software,andnetwork,andseamlesslyinteroperatewithothercommunicationsystemsthroughopenstandards.Centralizeddesktopcontrol,informationtrackingandmonitoring,andremoteservermanagementfunctionscanachievestableITsupportforregionaloffices,therebyfurtherreducingthecostofownership.Optimizedadd-onproductssuchasdesktopfaxandintegrateddocumentmanagementprogramscanincreasethevalueofthesystemandexpandthecommunicationinfrastructureoftheenterprise.
Systemfunction
Thesystemadoptsmodulardesignandhasgoodpackaging,whichmakesthesystempowerfulexpansibility.Themailcoresystemandthemailfront-end(Webmail)systemcanrunondifferenthosts,anddifferentmodulesofthesoftware,suchasthetransceivermodule,userauthenticationmodule,mailstoragemodule,useraccessmodule,etc.,canberunondifferentmachines.,Tocompletethefunctionsoftheentiree-mailsystemtogether.Ifnecessary,eachmodulecanbesplitandrunondifferentserverstoachieveloadsharing,sothesystemcanbecustomizedaccordingtoneedsanduserusagepatterns.Throughmulti-machineclustertechnology,operatorscanhandlethesending,managementandstorageofmassivemails.Accordingtoloadflowmanagement,operatorscangrasptheloadstatusofthesystemandaddserversaccordingtobusinessdevelopmentneeds.Thissystemcansupportmillionsoreventensofmillionsofusers.
Mainfunctions
·Mailreceivingandsendingfunctions-thesystemsupportsstandardSMTPandESMTPmailreceivingandsendingprotocols.
·Mailfetchingfunction-thesystemsupportsthestandardPOP3protocol.
·ProvideextendedWebaccessfunction
·Mailrejectionfunction-richmailrejectionfunctiontoavoidattacks.
Automaticmailfiltering
·Mailsystemsettingmanagementfunction
·Usermailboxcustomfoldermanagementfunction
·MultiplemaildomainsManagement——Achievemultiplemaildomainsononemailsystem.
·Securityfeatures—adoptingadvancedNASstoragetechnologytoensurethesafetyandreliabilityofthesystem
·Mailusermanagement
·Systemannouncement*
·Mailboxautomaticalarmfunction*
·Webmail——Apply,login,managemailboxes,sendandreceivemailsthroughWWW.
Howtochoose
VirusesarerampantontheInternet,andviciousvirusessuchasWeijin,PandaBurningIncense,andGreyPigeonshaveeruptedoneafteranother.Usersarefacingserioussecurityriskswhenusinge-mail.Thenumberofspamemailsisalsohigh,causingusers'mailboxresourcestobewastedandworkefficiencyreduced.Therefore,securityisanimportantmanifestationofthevalueofanenterprisepostoffice,andanti-virusandanti-spamisalsoanimportantfunctionthatmainstreamenterprisepostofficeproductsmustpossess.
Agoodcorporatepostofficecannotonlyimproveofficeefficiencyforcompanies,butsometimesalsohelpcompaniesseizeeverybusinessopportunity.IntheearthquakeinTaiwanattheendof2006,theInternetconnectionbetweendomesticandoverseaswasinterrupted.Manycompanieswereunabletocontactforeigncustomersbye-mail,andthereforelostmanyopportunitiesforcooperation.Inthisnetworkdisconnectionincident,somepostofficeswithoverseasforwardingandmulti-serverforwardingfunctionsshowedtheirtalents,sendingandreceivingoverseasmailnormally.Whetherithasoverseasforwardingandmulti-serverforwardingfunctionshasalsobecomeanimportantreferenceformanycompaniestochooseapostoffice.
Productswithhighqualityandexcellentperformancearethenaturalchoiceofallusers.Asanindispensableofficeassistantfordailywork,thesameistrueforthecorporatepostoffice.Onlyitsstableandfastoperationcanguaranteetheenterprise,itscustomers,anditsinternalCommunicationisunimpeded.However,formanyenterprises,especiallysmallandmedium-sizedenterprises,theshortageoffundshasalwaysbeenthebiggestproblemthatplaguestheirfurtherdevelopment.Therefore,itistheinevitablerequirementofthesecompaniestouseeverycapitalcarefullyandsavethecostofeveryproject.Fortheindispensablecorporatepostoffice,theyalsohavetheirownchoices,andthemostimportantcriterionis"price-performanceratio".
Simplepowerfulorlow-pricedproductsarenotthebestchoiceformostcompaniesinourcountry.Seekingthebestfitbetweenperformanceandprice,thiskindofcost-effectiveproductisoftenwelcomedbythemajorityofsmallandmedium-sizedenterprises.
Emailbrand
AlibabaCloudEnterpriseMail
SinaEnterpriseMail
ChinaResourcesBossPostOffice
263EnterpriseE-mail
139EnterpriseMailbox
TOMEnterpriseMailbox
NetEaseEnterpriseMailbox
138EnterpriseMailbox
TencentEnterpriseEmail
LinggeEnterpriseMailbox
corp-emailEnterpriseMailbox
35InternetEnterpriseMailbox
LinkedWorldEnterpriseMailbox
GleasyYixinEnterpriseMailbox
WebsitethroughEnterpriseMailbox
AccentEnterpriseMailbox
SohuEnterpriseMailbox
eYouEnterpriseMailbox
21cnEnterpriseMailbox
iCoremailEnterpriseMailbox
269EnterpriseMailbox
IdisExchangeEnterpriseMailbox
GuguInternetEnterpriseMailbox(UnlimitedPostOffice)
SpeedEnterpriseMailbox
EasternNetscapeEnterpriseMailbox
WanwangEnterpriseMailbox
SunshineInterconnectedExchangeEnterpriseMailboxes
SecurityTips
Inthepast,youonlyneededanti-virussoftwareandbasicanti-spamfilterstoensurethesecurityofenterprisemailboxes.TheseoldergenerationmailboxesTheeffectivenessofsafetycontrolhasrapidlydeclined.Attackerswillcarefullycraftemailsforspecifictargetrecipients,andtheyusuallysendsuchemailsfromthehackedemailaccountsoftherecipient'sfriendsorrelatives.Malwaresentviaemailoftenexploitszero-dayvulnerabilities,andnoanti-malwaresystemcanstopit.Thisshowsthate-mailthreatshaveescalated,andintermsofnature,thisthreathasbecomemoredynamicandtargeted.Stillrelyingon"cumbersome"internale-mailsystems,suchasMicrosoftExchangeandIBMLotusDomino.Mostcompaniesneedtodeploymanyemergingnetworksecuritytechnologiestoprotectthesesystems.Howtohelpcompaniesimprovemailboxsecurity.Thesetechnologiescanusuallybeaddedtocorporateemailsystemsasplug-ins,oraspartofemailsecuritydevicesthatworkcloselywithemailservers.
ReputationManagementService
Oneofthemosteffectivewaystofilteroutmaliciouscontentinemailsistosubscribetoemailreputationmanagementservices.Theseservicescollectinformation(includingdataonthesender,subject,attachment,andmanyothercharacteristics)oftheemailtheyreceivefromtheenterprisetodeterminethepossibleintentionsofeachsender.Thisinformationallowseachcompanytotakeactionsbasedonitssecurityrequirementsandtherelativereputationscoreofeachsendertodeterminewhichemailsthecompanyallowstosendtotherecipient.Theadvantageoftheseservicesisthattheycandetectemailsacrossmanycompanies,andeachcompanycannotachievethisdetectiononitsown.
Temporaryquarantine
Asimpleandveryeffectivetechniquetopreventthelatestemailattacksistotemporarilyquarantinesuspiciousemails.Manythreats(especiallythoseinvolvingphishingattacks)haveextremelyshortlifespans.Itmayonlytakeafewhoursfromtheproductionandsendingofphishingemailstothedetectionofthreatsandtheshutdownofsupportingmaliciouswebsites.Butanti-phishingtechnologycannotfullykeepupwiththepaceoftheserapidlyemergingthreats.Therefore,whensuspiciousemailcontentisdetected,companiesshouldtemporarilydelayemails.Liketheemailreputationmanagementservice,theconfigurationoftemporaryisolationshoulddependonthesecurityrequirementsoftheenterprise.Otherwise,thismaycausenormalemailstobeunintentionallydelayedandaffectbusinessoperations.
Outboundmailfiltering
Enterprisesshouldnotonlyfilterthecontentoftheirinboundemails,butalsofilteroutboundemails.Thiscanusuallybeachievedwithexistingtechnology.Forexample,datalossprevention(DLP)productscanpreventthesendingofemailsthatcontainsensitivepersonallyidentifiablemessages(PII).Theusermayunintentionallysendthisemail,oritmaybesentmaliciouslybymalwarethatinfectstheuser'scomputer.Manycompaniescanalsoenforcecontentsecuritypoliciesonoutboundemails,suchaspreventingthesendingofemailsthatcontainprofanityorkeywordswithinappropriatecontent("confidential").
Emailencryption
Policy-basedemailencryptionmainlyinvolves:selectingemailsforencryptionbasedonacertainpredefinedstandard.Forexample,anenterprisecanformulatesuchapolicythatwhenane-mailsentbysomeseniorleaderscontainsspecificwordsorphrasesinthesubject,orhasvariousattachments,itwillbeencryptedtoprotectitsconfidentiality.Companiescanevenchoosetoencryptthecontentofallinternale-mails,andnowtherearetechnologiesthatcanencrypte-mailssentoutsidethecompany(suchasbusinesspartners).
Ideally,theuseofpolicy-basedemailencryptionshouldbetransparenttousersandprotectthesecurityoftheiremails.Theydonotneedtochoosewhethertoencrypttheircommunicationsforeachemail(someemailsEncryptionplug-inislikethat).GiventhespreadofBYODtrendsinenterprises,thisisbecomingmoreandmoreimportantbecausethesedevicesoftenlackthesecuritycontrolsincludedinthemobiledevicesissuedbyenterprises.Inenvironmentswheremobiledevicemanagement(MDM)productsarenotdeployed,policy-basedemailencryptionisaveryimportantsecurityelement.