On Wed, 5 Dec 2007, Dave Crocker wrote: > > How would you describe what they do do?
Sendmail and (recent versions of) Postfix never add a Sender: field to the header. Exim (by default) adds a Sender: field corresponding to the authenticated sender if this is different from the From: field, which is what 822 and 2822 and 4409 suggest. Traditional Unix MUAs don't bother showing the Sender: field, but Microsoft Outlook is quite keen on it. Therefore in our environment messages from role addresses tend to show up in Outlook as "from person on behalf of role" which is annoying. I'm inclined to give up on adding Sender: fields as specified and instead use non-standard annotations in the Received: fields to record the authenticated sender (as in this message). Tony. -- f.a.n.finch <[EMAIL PROTECTED]> http://dotat.at/ FITZROY SOLE LUNDY FASTNET: WESTERLY 7 TO SEVERE GALE 9, PERHAPS STORM 10 LATER IN SOLE, LUNDY AND FASTNET. ROUGH OR VERY ROUGH, OCCASIONALLY HIGH. RAIN THEN SQUALLY SHOWERS. MODERATE OR GOOD, OCCASIONALLY POOR. _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html
