資源描述：
《精美通用ppt模板淺藍地球主題》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在教育資源-天天文庫。
1、單擊此處編輯主標題單擊此處編輯副標題單擊此處編輯標題正文部分樣例A正文部分樣例B正文部分樣例C正文部分樣例D正文部分樣例I正文部分樣例II正文部分樣例III單擊此處編輯標題正文部分樣例A正文部分樣例B正文部分樣例C正文部分樣例D正文部分樣例I正文部分樣例II正文部分樣例III正文標題第一級第二級第三級第四級第五級正文標題第一級第二級第三級第四級第五級樣例文本AGemmiCong精美PPT模板盡在如下豆單http://www.docin.com/d-326.html&forward=2歡迎大家欣賞和下載樣例文本AGemmiCong精美P
2、PT模板盡在如下豆單http://www.docin.com/d-326.html&forward=2歡迎大家欣賞和下載樣例文本BThearticleaboutsenderrewritingcontainstechnicalbackgroundinfoabouttheearlySMTPhistoryandsourceroutingbeforeRFC1123.Sendmailwasoneofthefirst(ifnotthefirst)mailtransferagentstoimplementSMTP.[citationneeded]S
3、omeotherpopularSMTPserverprogramsincludePostfix,qmail,NovellGroupWise,Exim,NovellNetMail,MicrosoftExchangeServer,SunJavaSystemMessagingServer.Messagesubmission(RFC2476)andSMTP-AUTH(RFC2554)wereintroducedin1998and1999,bothdescribingnewtrendsine-maildelivery.Originally,SM
4、TPserversweretypicallyinternaltoanorganization,receivingmailfortheorganizationfromtheoutside,andrelayingmessagesfromtheorganizationtotheoutside.Butastimewenton,SMTPservers(Mailtransferagents),inpractice,wereexpandingtheirrolestobecomemessagesubmissionagentsforMailuserag
5、ents,someofwhichwerenowrelayingmailfromtheoutsideofanorganization.(e.g.acompanyexecutivewishestosende-mailwhileonatripusingthecorporateSMTPserver.)Thisissue,aconsequenceoftherapidexpansionandpopularityoftheWorldWideWeb,meantthatSMTPhadtoincludespecificrulesandmethodsfor
6、relayingmailandauthenticatinguserstopreventabusessuchasrelayingofunsolicitede-mail(spam).樣例文本BThearticleaboutsenderrewritingcontainstechnicalbackgroundinfoabouttheearlySMTPhistoryandsourceroutingbeforeRFC1123.Sendmailwasoneofthefirst(ifnotthefirst)mailtransferagentstoim
7、plementSMTP.[citationneeded]SomeotherpopularSMTPserverprogramsincludePostfix,qmail,NovellGroupWise,Exim,NovellNetMail,MicrosoftExchangeServer,SunJavaSystemMessagingServer.Messagesubmission(RFC2476)andSMTP-AUTH(RFC2554)wereintroducedin1998and1999,bothdescribingnewtrendsi
8、ne-maildelivery.Originally,SMTPserversweretypicallyinternaltoanorganization,receivingmailfortheorganizationfro
