Gary Jorgenson wrote:
Based on his message it sounds like you can get blacklisted just by running
a listserve. The guy didn't give any more information on why we're being
flagged as spammers.
Go through your logs. Make sure you don't have an infected computer
sending messages out or a website with some type of form that is being
exploited.
Being blocked by Hotmail, Yahoo or AOL is a warning sign that your mail
server might be sending out something that you are unaware of.
Are they giving you a 471 error or a 550?
-Ron
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