I've gotten reports of issues sending to the HT list. Anyone else getting these kind of errors and, important, anyone with any ideas how to fix. I thought it was DMARC related however doesn't seem to be. Milk Muller has reported bounces as below: > Could not deliver message to the following recipient(s): > > Failed Recipient: hidden-discuss at lists.hidden-tech.net > Reason: Remote host said: 451 4.7.1 Service unavailable - try again later I can see no other dianostic messages, from postfix or dkim-milter (the dkim deamon) Any ideas of how to fix, or even get better diagnotics would be helpful. -- Rich Roth CEO TnR Global Bio and personal blog: http://rizbang.com Building the really big sites: http://www.tnrglobal.com Small/Soho business in the PV: http://www.hidden-tech.net Places to meet for business: http://www.meetmewhere.com And for relaxation: http://www.welovemuseums.com http://www.artonmytv.com/ Helping move the world: http://www.earththrives.com