[quote user="bfluet"]An internet search yielded a post where someone fixed this problem by adding a reply-to address to his messages. Poster was using Moodle (whatever that is) but it may be worth testing with a default reply-to address configured. Tools > Options > Outgoing mail > Sending Mail
[/quote]
Thank you, Brian. I did discover that that particular install of PMail was not configured with a default reply to address so fixed that. However it didn't solve the problem, unfortunately. I think I found the same reference to the Moodle post you refer to. There are two recipients now that bounce with this same rfc complaint from my mail server, Isomedia, during sorting:
Reporting-MTA: dns; isomedia-sorting.isomedia.com
X-Postfix-Queue-ID: 8AA17149290
X-Postfix-Sender: rfc822; ............@isomedia.com <-------- message was sent through my domain host/mail server host.
Arrival-Date: Thu, 31 Oct 2013 09:13:44 -0700 (PDT)
Final-Recipient: rfc822; ...........@msn.com
Original-Recipient: rfc822;............@msn.com
Action: failed
Status: 5.7.0
Remote-MTA: dns; mx2.hotmail.com
Diagnostic-Code: smtp; 550 5.7.0 (SNT0-MC2-F15) Message could not be delivered.
Please ensure the message is RFC 5322 compliant.
It seems as though only messages sent from my wife's computer end up being flagged, if you will, with this rfc822 thing. I really apologize if I'm not using the correct terminology for all this stuff.
<p>[quote user="bfluet"]An internet search yielded a post where someone fixed this problem by adding a reply-to address to his messages.&nbsp; Poster was using Moodle (whatever that is) but it may be worth testing with a default reply-to address configured.&nbsp; Tools &gt; Options &gt; Outgoing mail &gt; Sending Mail
[/quote]</p><p>&nbsp;Thank you, Brian. I did discover that that particular install of PMail was not configured with a default reply to address so fixed that. However it didn't solve the problem, unfortunately. I think I found the same reference to the Moodle post you refer to. There are two recipients now that bounce with this same rfc complaint from my mail server, Isomedia, during sorting:</p><p><i>Reporting-MTA: dns; isomedia-sorting.isomedia.com
X-Postfix-Queue-ID: 8AA17149290
<u>X-Postfix-Sender: rfc822; ............@isomedia.com</u></i> &lt;-------- message was sent through my domain host/mail server host.
<i>Arrival-Date: Thu, 31 Oct 2013 09:13:44 -0700 (PDT)
</i>
<i>Final-Recipient: rfc822; ...........@msn.com
Original-Recipient: rfc822;............@msn.com
Action: failed
Status: 5.7.0
Remote-MTA: dns; mx2.hotmail.com
Diagnostic-Code: smtp; 550 5.7.0 (SNT0-MC2-F15) Message could not be delivered.
&nbsp;&nbsp;&nbsp; Please ensure the message is RFC 5322 compliant.
</i>
&nbsp;It seems as though only messages sent from my wife's computer end up being flagged, if you will, with this rfc822 thing. I really apologize if I'm not using the correct terminology for all this stuff. </p><p>&nbsp;</p>