This is not threading, because I don't know how to reply on Gmail, only how to create a new post. Sorry.
I just tried to send a reply, and this is the log result: 02-Jun-16, 20:06:54: SEND - TLS handshake complete 02-Jun-16, 20:06:54: SEND - connected to SMTP server 02-Jun-16, 20:06:55: SEND - authenticating (login)... 02-Jun-16, 20:06:56: SEND - sending message to tbudl@thebat.dutaint.com 02-Jun-16, 20:06:58: SEND - The last address submitted was <tbudl@thebat.dutaint.com> !02-Jun-16, 20:06:58: SEND - Message has not been sent. Server reply - Requested action aborted: local error in processing 02-Jun-16, 20:06:59: SEND - connection finished - 0 message(s) sent 02-Jun-16, 20:06:59: SEND - Some messages were not sent - check the log for details I usually send to the list from this account without problems, so this does look like a problem at GMX/1&1 to me. -- Cheers, Thomas. ________________________________________________ Current version is 7.1 | 'Using TBUDL' information: http://www.silverstones.com/thebat/TBUDLInfo.html