On Wed, 2009-09-09 at 11:01 +0100, Jonathan Gilpin wrote: > Surely I need to prevent this from being allowed? How can I make Exim > reject a message if MAIL FROM: is blank?
You can't (well, you can, but you must not). "MAIL FROM:<>" is the universally accepted indicator of an NDR or other type of bounce. It's also used all over the world as the envelope sender for Out Of Office messages (well, it should be, but all too often isn't). Acquaint yourself with RFC5321 to see where acceptance of such messages is mandated. Graeme -- ## 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/
