sendmail：将延迟、超时的邮件移至队列末尾

Question

在某些情况下，邮件无法成功发送，并且由于某些原因仍停留在队列前面。例如：

$ mailq
        /var/spool/mqueue/q6 (1 request)
-----Q-ID----- --Size-- -----Q-Time----- ------------Sender/Recipient-----------
t5M34RxD020490      357 Mon Jun 22 12:04 <[email protected]>
      8BITMIME   (Deferred: 450 4.2.1 Mailbox temporary disabled for this reci)
                     <[email protected]>
/var/spool/mqueue/q2 is empty
        /var/spool/mqueue/q5 (1 request)
-----Q-ID----- --Size-- -----Q-Time----- ------------Sender/Recipient-----------
t5JJG501000414      359 Sat Jun 20 04:16 <[email protected]>
      8BITMIME   (Deferred: Connection timed out with mail.server.com.)
                     <[email protected]>
        /var/spool/mqueue/q1 (1 request)
-----Q-ID----- --Size-- -----Q-Time----- ------------Sender/Recipient-----------
t5JJG5RA000418      359 Sat Jun 20 04:16 <[email protected]>
      8BITMIME   (Deferred: Connection timed out with mail.server.com.)
                     <[email protected]>
/var/spool/mqueue/q3 is empty
        /var/spool/mqueue/q4 (1 request)
-----Q-ID----- --Size-- -----Q-Time----- ------------Sender/Recipient-----------
t5JJGJU3000439      359 Sat Jun 20 04:16 <[email protected]>
      8BITMIME   (Deferred: Connection timed out with mail.server.com.)
                     <[email protected]>
        Total requests: 4

我想将sendmail这些延期/超时的邮件移到队列末尾，自动地。其余邮件不会被延迟/超时邮件阻止。我发现了一些可以从队列中删除延迟/超时邮件的 shell 脚本，但这些是次优的。

可以通过修改来做到这一点吗/etc/mail/sendmail.cf？

或者，是否可以将阻止的邮件移动到其他空队列？目前，我的系统有 6 个队列。