On 3.7.2013, at 4.21, John Fawcett <john...@erba.tv> wrote: > dnsbl's are a popular method to prevent listed ips from making > connections to mta software. > > cf. postscreen_dnsbl_sites in postfix > > Would it be possible to introduce such a feature in dovecot, so that > connections can be denied > based on a dnsbl lookup (where the precise dnsbls used are configurable)?
You're talking about IMAP/POP3 connections? Possible, yeah .. possibly even without code changes by using tcpwrappers.
