On Fri, 13 Mar 2015 17:35:34 -0500 (CDT) sha...@shanew.net wrote: > All this, of course, after searching high and low for a milter, proxy, > or some other contraption that would allow me to "clone" a mail stream > to a totally separate server without disrupting the original stream > (like port spanning or a network tap, but for SMTP), and finding > nothing outside of alpha or beta to do that. If anyone knows of > something like that, I'd be interested to hear about it as well.
That can have... interesting failure modes if the cloned stream and the original stream encounter different SMTP reply codes. MIMEDefang can do what you want in about 5 lines of Perl. I believe there's also a dedicated tool that does this called Roundhouse: http://www.snertsoft.com/sendmail/roundhouse/ Note that Roundhouse is not free software. Regards, David.
