The 03.08.17 at 07:35, Patrick Shanahan wrote:
Diagnostic-Code: X-Postfix; host hermes.suse.de[213.95.15.136] said: 450 <jrn@oregonhanggliding.com>: Sender address rejected: Domain not found
IIANM, this means that hermes.suse.de was unable to resolve your domain "oregonhanggliding.com" and therefore rejected the post, ie: spam control.
Probably a temporary failure.
Your mail client needs to set the "envelope_from" to match your email address. I do not know how to accomplish this in elm, it may not be possible. The newer client, mutt which is quite similar to elm, sets this in the rc file.
The envelope_from matchs the from address for all email clients - except a few that can set them differently, like mutt. -- Cheers, Carlos Robinson