Johnny C. Lam wrote: > Gordan Bobic wrote: >> It would also be worth checking if "MAIL FROM:" is the same as "From:" and >> "RCPT TO:" is the same as "To:". Can anyone think of why these would ever >> be inconsistent in a valid email? > > The first argument to "MAIL FROM:" is the mailbox where errors and DSNs > are sent. This is different from the "From:" header, which should be > the mailbox of the author of the message and also the default "reply-to" > address. These two can easily not match when address extensions and > mailing lists are involved.
To recap, mailing lists and robots. IME, messages from non-occasional mailing list and several robots sooner or later are stored in their own imap folder(s). In case doing so is common, there is an interesting point to consider: it is very easy to discriminate between vanilla human-to-human messages on the one hand and robots and occasional mailing lists on the other. Comparing that with the overwhelming intricacies involved in the spam vs. ham discrimination, I'd say the former is cleaner than the latter. It also clarifies the meaning of SPF. ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ courier-users mailing list [email protected] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
