May 26, 2018
Mail server network protocol front-ends
This is mailfront, a package containing customizeable network front-ends for mail servers. It contains complete SMTP and POP3 front-ends as well as an authentication module for IMAP.
Two SMTP back-ends are provided. One delivers mail to qmail-queue, mimicking most of the behavior of qmail-smtpd, with the addition of support for SMTP AUTH. The other rejects all SMTP commands if $SMTPREJECT is set, and execs its command line otherwise in order to run the above program.