On Sep 17, 2014, at 3:28 PM, Bill Cole <postfixlists-070...@billmail.scconsult.com> wrote:
> On 16 Sep 2014, at 18:18, Philip Prindeville wrote: > >> MIMEDefang allows you to do all this, plus you can call Perl modules like >> File::Type on attachments to figure out if the file has been mistyped (i.e. >> the content-type disagrees with what the actual file header and/or file >> extension says it is). > > Other reasons to use MD for this: > > 1. It analyzes the MIME structure of messages and interprets header > attributes so you don't need to figure out a complex RE to match all of the > edge & corner cases of legal MIME headers and don't need to test a complex RE > against every logical header. > > 2. Optionally, you can have it unpack zip archives and check the files inside. > > 3. It has robust, mature support for SpamAssassin & a long list of AV tools > so you can put lightweight policy enforcement like this (or other conditional > diversions) before passing messages to the more demanding deep scanners. Yup. I have it intercept Spam, stick it in an ARF wrapper, and deliver it to the Drafts folder of the Abuse department… Good stuff.
