Logan Shaw wrote: > > > So... is it safe to assume their servers are configured > incorrectly? Or should our MTA be somehow adding that > header if it's missing? Or is there some other way that our > MailScanner+SpamAssassin combo should be getting the envelope > sender information?
MailScanner versions of any reasonably recent vintage add a X-MailScanner-From: header to each message before passing it to SA. Edit your SA local.cf file and add: envelope_sender_header X-MailScanner-From