We're currently using a custom written smtp server that filters "bad words". I'm thinking that I'd much prefer using a generic MTA such as exim or postfix, my personal preference being exim because I think it's much more flexible. I'm just wondering what people think would be the best way of achieving this.
I'd prefer to have the rejection at smtp time rather than generate a bounce and I was thinking a few possible solutions might work. a. acl_smtp_mime with mime_regex containing the "bad words" for things with the appropriate $mime_content_type. The disadvantage of this being that it only captures the first 32K and its CPU-intensive nature. b. Add the badwords into spamassassin rules and search $spam_report for matches on these rules. It is a bit of an abuse of spamassasin but it should work. c. Pipe the message through a filter transport. This is obviously my least preferred option as it will generate bounce messages after mail is accepted or effectively blackhole the message if the bounce is supressed. -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
