Hi,
the courierfilter man page says that a courierfilter will receive "One or
more pathnames to control files for this message" through its socket. Under which conditions is there more than one control files per message?
When the original message has more than 100 recipients (default) after alias expansion.
To what extent does my courierfilter have to respect any control files beyond the first?
If you want to cancel the message completely, you'll need to open each control file, and cancel all the recipients in that control file.
Except for the recipient list, the control files will be identical.
pgp00000.pgp
Description: PGP signature
