My server s sending out a lot of mail: account activation codes, notifications, pasword reset codes etc.
There is almost no problems with it. Users are receiving emails, including Hotmail users.
But from time to time in Exim logfile appears the following:
2013-02-16 10:14:19 1U6emh-0001W6-AY <= www-data@myserver U=www-data P=local S=1456 [email protected]
2013-02-16 10:14:19 1U6emh-0001W6-AY mx3.hotmail.com [65.54.188.126] Connection refused
2013-02-16 10:14:20 1U6emh-0001W6-AY => email@address R=dnslookup T=remote_smtp H=mx3.hotmail.com [65.55.92.136]
2013-02-16 10:14:20 1U6emh-0001W6-AY Complete
Can me explain somebody what does it mean? Why 65.54.188.126 refuses connection?
Are you running from a dynamic IP or from a static IP that doesn't have a reverse DNS (PTR) record configured?
Larger mail houses like AOL and Yahoo will block such connections as they are often used by spammers.