qmail-tcpto - print TCP timeout table

qmail-tcpto

After an SMTP connection attempt times out, qmail-remote records the relevant IP address. If the same address fails again (after at least two minutes with no intervening successful connections - max_tolerance), qmail-remote assumes that further attempts will fail for at least another hour (min_backoff).

smtproutes can be used to control max_tolerance and min_backoff periods.

qmail-tcpto prints qmail-remote's current list of timeouts.

qmail-tcpto must be run either as root or with user id qmailr and group id qmail. qmail-tcpto uses the environment variable QUEUE_BASE or the conrol file qbase if present to use the queue base. If the environment variables QUEUE_START and QUEUE_COUNT are set, qmail-tcpto will process multiple queues present in the queue base.

qmail-qread(8), qmail-remote(8), qmail-tcpok(8),