Given the following pipe transport, the Envelope-To header just has a linefeed for the line ending, not CRLF (at least on Exim 4.66). This strikes me as inconsistent. Less polite people might call it a bug ;-)
store_mail: driver = pipe return_fail_output batch_max=999 use_crlf=yes envelope_to_add Neil Youngman -- ## 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/