Archiving Emails from a Qmail Based Email Server

Qmail has the ability to set up a mailbox where all emails that Qmail handles get copied to. Here is an adapted version of the appropriate "Life with Qmail FAQ" article

Edit extra.h

QUEUE_EXTRA is a compile-time configuration variable that specifies an additional recipient that will be added to every delivery. This is used primarily for logging. E.g., the FAQ describes how to use QUEUE_EXTRA to keep copies of all incoming and outgoing messages.

To use QUEUE_EXTRA, edit extra.h specifying the additional recipient in the format "Trecipient\0", and the length of the QUEUE_EXTRA string in QUEUE_EXTRALEN (the "\0" counts as one character). For example:

 #define QUEUE_EXTRA "Tmailstore\0"
 #define QUEUE_EXTRALEN 11

Recompile Qmail

Shut down qmail if it's running. If you installed the qmailctl script from the Installation section, that can be done by:

 qmailctl stop

If you don't have the qmailctl script, you should use your startup/shutdown script or send qmail-send a TERM signal.

Then rebuild qmail using:

 make setup check

Prepare mailstore user

Populate ~alias/.qmail-mailstore with:

 /var/mailstore/Maildir/

Finally, restart qmail.