.TH qmail-queue 8.SH NAMEqmail-queue \- queue a mail message for delivery.SH SYNOPSIS.B qmail-queue.SH DESCRIPTION.B qmail-queuereads a mail message from descriptor 0.It then reads envelope information from descriptor 1.It places the message into the outgoing queuefor future delivery by.BR qmail-send .The envelope information isan envelope sender addressfollowed by a list of envelope recipient addresses.The sender address is preceded by the letter Fand terminated by a 0 byte.Each recipient address is preceded by the letter Tand terminated by a 0 byte.The list of recipient addresses is terminated by an extra 0 byte.If.B qmail-queuesees end-of-file before the extra 0 byte,it aborts without placing the message into the queue.Every envelope recipient addressshould contain a username,an @ sign,and a fully qualified domain name..B qmail-queuealways adds a.B Receivedline to the top of the message.Other than this,.B qmail-queuedoes not inspect the messageand does not enforce any restrictions on its contents.However, the recipients probably expect to see a proper header,as described in.BR qmail-header(5) ..SH "FILESYSTEM RESTRICTIONS".B qmail-queueimposes two constraints on the queue structure:each.B messsubdirectory must be in the same filesystem as the.B piddirectory; and each.B todosubdirectory must be in the same filesystem as the.B intddirectory..SH "EXIT CODES".B qmail-queuedoes not print diagnostics.It exits0 ifit has successfully queued the message.It exits between 1 and 99 ifit has failed to queue the message.All.B qmail-queueerror codes between 11 and 40indicate permanent errors:.TP 5.B 11Address too long..TP.B 31Mail server permanently refuses to send the message to any recipients.(Not used by.BR qmail-queue ,but can be used by programs offering the same interface.).PPAll other.B qmail-queueerror codes indicate temporary errors:.TP 5.B 51Out of memory..TP.B 52Timeout..TP.B 53Write error; e.g., disk full..TP.B 54Unable to read the message or envelope..TP.B 55Unable to read a configuration file.(Not used by.BR qmail-queue .).TP.B 56Problem making a network connection from this host.(Not used by.BR qmail-queue .).TP.B 61Problem with the qmail home directory..TP.B 62Problem with the queue directory..TP.B 63Problem with queue/pid..TP.B 64Problem with queue/mess..TP.B 65Problem with queue/intd..TP.B 66Problem with queue/todo..TP.B 71Mail server temporarily refuses to send the message to any recipients.(Not used by.BR qmail-queue .).TP.B 72Connection to mail server timed out.(Not used by.BR qmail-queue .).TP.B 73Connection to mail server rejected.(Not used by.BR qmail-queue .).TP.B 74Connection to mail server succeeded,but communication failed.(Not used by.BR qmail-queue .).TP.B 81Internal bug; e.g., segmentation fault..TP.B 91Envelope format error..SH "SEE ALSO"addresses(5),envelopes(5),qmail-header(5),qmail-inject(8),qmail-qmqpc(8),qmail-send(8),qmail-smtpd(8)