Installed syncmail program what Thomas was wanting. It sends a mail of each cvs commit, including the actual changes in source. Otherwise the mailing list is read-only. Subscribing happens the same way as to dovecot list, ie. dovecot-cvs-request@procontrol.fi with subscribe in subject.

Hmm. I think I should also separate the private/public cvs repositories running in that computer and provide anonymous pserver access..