Mailing list posting confirmation daemon
This is an alpha release. While the functionality is sound, the packaging is probably not even beta quality. Compilation of the components written in C has only been tested under Linux.
postconfirm consists of postconfirmd, which is the long-running (daemon) part, and postconfirmc, which is the client part of a client-server program which handles email confirmations. It is intended as a front-end to mailing lists. It provides funcitonality which is a subset of TMDA, but is adapted to high-volume usage and does not have anywhere near all the bells and whistles which TMDA has. On the other hand, since the whitelist lookup is done by the long-running server part, the overhead of doing a verification that a poster has a confirmed address is much smaller than for TMDA. This makes it a factor 1000 or more faster than TMDA in production, with a memory footprint a factor 20 smaller.
Version 0.42.1 (31 Jul 2018)
- Added domain name normalization (to lowercase) before checking whether we got a hit on the _dmarc domain lookup. Commented out verbose wall-time log messages.
Version 0.42.0 (09 May 2018)
- Added a check on the sender address during dmarc-reverse processing, requiring that the sender is whitelisted or has a confirmed address.
- Changed the logging of dmarc-reverse processing to use a more compact log line format, and commented out some debug logging statements.
- Added exception catching and loggin for failures to open smtp sessions to the configured server and port.
- Fixed a log writing bug.
Version 0.41.5 (20 Apr 2018)
- Fixed dmarc_reverse() to not re-send to other addresses than the indicated recipient.