保证邮件 meaning in English

certified mail

This is , however , no guarantee that the message has been read or understood
这是一则读取回条，然而并不就此保证邮件内容已经被?解，或是邮件被仔细阅读过。
Next day delivery of items sent to specified major destinations round the globe is guaranteed , giving you extra peace of mind
特快专递保证邮件翌日送达全球各指定的主要目的地，让您倍感安心。
Please kindly adjust mailing server ( smtp ) by the above - mentioned resolvent . it may assure that the process of mail receiving & sending will be running very well
请通过以上解决方案在您的电脑邮件中调整邮件发送服务器（ smtp ）。保证邮件收发正常运行。
Then the problem now is how to make filter in smtp with various filtering engine ( virus engine , keyword engine and rbl , etc . ) . this article describes the mechanism of smtp and the process of mail transfer systematically . compare some main popular mail filtering ways from several aspects
因此，要保障邮件的安全传输，使你的网络避免通过邮件实现的网络攻击，就要从smtp入手，使用不同的过滤引擎及过滤策略（如病毒引擎，关键字引擎，以及rbl （ realtimeblackholelist ）等），在smtp中实现过滤，从各个方面保证邮件传输的安全性。