You can also send advanced messages with MIME attachments, custom mail headers, and controlled character sets.

您也能发送具有MIME附件、定制邮件标题以及控制字符集的高级消息。

youdao

This article focuses on the extraction of perhaps the most common form of availability data: E-mail headers.

本文主要介绍如何提取最常见的可用性数据：电子邮件标题。

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The narrow views allow users to see their mail without the traditional column headers and with more information stacked.

用户可以通过窄视图查看邮件，这种方式不必使用传统的列标题，并且可以看到更多的信息。

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When that magic day comes, my incoming mail server will look at the headers of the incoming email.

FORBES: Authenticate This!

Avalanche comes with technology that rotates or changes the headers on bulk e-mail, thereby allowing it to slip past many filters.

FORBES: Interview With A Spampire