[greglindahl]

procmail+spamassassin is an example of a long-lived daemon and a client that talks to it, but indeed, spamassassin had to provide both parts because procmail doesn't directly do that.

I have 20 year old code that does the same client/server thing, by having procmail leave files in a directory that the daemon is watching for new files to appear in.

So I'd agree that it's a useful piece of sugar!

[nikkaelle]

I should have mentioned that I run lamson in maildir mode rather than listen on port 25. I have postfix configured to dump incoming email into a maildir, and my lamson process watches that directory.

So I guess the reason I don't use procmail (aside from it not having a release since 2001) is that postfix is sufficient :->