Hi! I´ve just launched my new debian wheezy mailserver with postfix virtual domains (using mariadb) and mailman. It´s config is based on ISPmail tutorial for Debian Wheezy found at workaround.org and howtos found here. Everything is working fine except that some mail sent to mailing lists get to the server but then gets stuck outbound to the mailinglist members. The message seems to be DKIM related but I havn´t done any DKIM or SPF configs whaterver. On the old mail server which also has virtual domains (using plain files) and the same mailinglist this never happends. The only thing that i can think of is the new server har TLS enabled and the old one doesn´t. Here is an example, any one got an idea what is wrong? Nov 23 19:47:52 mailserv1 postfix/smtp: 7A58A1BD: to=<email@example.com>, relay=mailout.comhem.se[18.104.22.168]:25, delay=4397, delays=4018/0.03/0.08/378, dsn=4.0.0, status=deferred (host mailout.comhem.se[22.214.171.124] said: 451 Cannot verify DKIM signature: pubkey_unavailable (in reply to end of DATA command)) It could be that the problem occur when users with gmail accounts sends to the mailing list but I´m not 100% sure.