From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <955b04dd781fc8ef726c1f33aef706db@plan9.bell-labs.com> From: David Presotto To: 9fans@cse.psu.edu MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: [9fans] rewriting From: Date: Thu, 3 Apr 2003 11:03:27 -0500 Topicbox-Message-UUID: 893c0c78-eacb-11e9-9e20-41e7f4b1d025 I've noticed over the years that if the domain name in a From: address has a CNAME, then it gets rewritten by most sendmails. Anyone know if there is an RFC that covers the subject?