----- Original Message ----- From: "Mike Brodbelt" <[EMAIL PROTECTED]> To: "Ian McDonald" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Friday, October 25, 2002 1:31 PM Subject: Re: Perl filtering before final delivery
> If you are using sendmail, the cleanest way of doing what you want would > be to make use of the milter interface, which allows you to pass > messages through an external program that can change them as you wish. > This would not require users to have accounts on the server, and would > not interfere with the normal cyrus delivery mechanisms. For examples of > something similar, look at the sendmail milters available for hooking in > Spam Assassin. Alas, the Milter interface is multithreaded, Sendmail::Milter seems (to be) to be relatively unstable, and the Perl DBI libraries do not work reliably in a Milter environment. > > So, when I have an amended mail message and a destination folder, what do I > > do? Call /usr/cyrus/bin/deliver with my settings? > > Yes, you could do that. Deliver is just a wrapper that sends a message > submitted to it to Cyrus via LMTP. If you can do your processing in the > MTA pipeline, before it reaches Cyrus however, I think you'll have a > better solution. The Milter interface for sendmail allows you additional > latitude, such as specifying what should happen if the filter is not > available, and multiple filters can also be chained together. Other > MTA's may have other means of achieving this. Alas, this would require reworking Cyrus and sendmail again; Sendmail 8.12.6 seems to talk directly to lmtp. Given how long it took me to set up Cyrus the first time, I am loathe to tinker. Is moving to /usr/cyrus/bin/deliver as simple as replacing: define(`confLOCAL_MAILER', `cyrusv2') MAILER(`cyrusv2')with this? :define(`confLOCAL_MAILER', `cyrus') MAILER(`cyrus') Does /usr/cyrus/bin/deliver run as a nice, straightforward, single-threaded process which is called many times?Thanks,Ian
