Postfix – Page 2 – Linux and Other Stuff

Outlook or Mail AAAA Error

August 8, 2014 by admin

Trying to send email to an outlook.com account and getting this failure. Currently Microsoft doesn’t support IPv6 for hotmail.com, live.com or outlook.com. Postfix by default if IPv6 is enabled will attempt a IPv6 DNS lookup, the AAAA record, this will fail as Microsoft doesn’t publish AAAA records for either domain. Current work around is to … Read more

Helo incorrect?

July 17, 2014 by admin

There’s a test available at http://cbl.abuseat.org/helocheck.html that will show you how the server is actually HELOing.

Postfix and Qmail Sending IP

May 12, 2014 by admin

Changing postfix to qmail which will use the primary IP of the server (216.55.xxx.xxx) to send messages for all accounts is a great way to change the sending IP to one that is not blacklisted. Qmail default IP default mail ip in /var/qmail/control/outgoingip