opt_timeout.queuereturn.html

来自「Unix下基于Web的管理工具」· HTML 代码 · 共 11 行

<header>Time before giving up</header>

When delivery of a message fails for some temporary reason (such as the
destination server being down), sendmail will keep the email in its queue
for the amount of time specified by this option, retrying delivery occasionally.
Once the time limit is reached, a bounce message will be sent back to the
sender and the message discarded. <p>
<include units>
<hr>