Greetings, A certain device within our organization is relaying email via our EXIM systems but EXIM is unable to sign the message. The vast majority of our other messages are signed without issues.
Here is the corresponding error from the log. 2021-04-21 14:34:48 1lZDwB-0003pb-TY DKIM: validation error: LONG_LINE 2021-04-21 14:34:48 1lZDwB-0003pb-TY DKIM: Error during validation, disabling signature verification: LONG_LINE 2021-04-21 14:34:48 1lZDwB-0003pb-TY <= XXXXXXXXXX@XXXXXXXXXXX H=XXXXXXXXXXXXX (PowerXpert-00-20-85-FC-86-BE) [X.X.X.X] P=esmtp K S=1684783 id=0_0d_-1_1032 2021-04-21 14:34:49 1lZDwB-0003pb-TY DKIM: signing failed: LONG_LINE 2021-04-21 14:34:50 1lZDwB-0003pb-TY => XXXXXXXXXXX@XXXXXXXXXXX R=dnslookup T=remote_smtp S=1703743 H=XXXXXXXXXXX.mail.protection.outlook.com [104.47.61.36]:25 X=TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256 CV=yes K C="250 2.6.0 <0_0d_-1_1032> [InternalId=23656679878773, Hostname=DM6PR12MB4747.namprd12.prod.outlook.com] 1711342 bytes in 0.383, 4354.433 KB/sec Queued mail for delivery" DT=1s 2021-04-21 14:34:50 1lZDwB-0003pb-TY Completed The DKIM LONG_LINE errors are also output to the paniclog. EXIM version = 4.92.3 Regards, Wayne -- ## List details at https://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/
