qmail tcpok.8 - indimail/indimail-mta GitHub Wiki
qmail-tcpok - clear TCP timeout table
qmail-tcpok
qmail-tcpok erases qmail-remote's current list of timeouts, so that qmail-remote does not make any assumptions about failing addresses.
qmail-tcpok must be run either as root or with user id qmailr and group id qmail. qmail-tcpok 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-tcpok will process multiple queues present in the queue base.