Most troublesome domains:
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Domain: mymail.net
Count: 3
Typical error: 554 Your email is considered spam (17.30 spam-hits)
Affected lists: ptbuzz
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Domain: sinclair.edu
Count: 3
Typical error: 554 5.7.1 bounce-drmardy=xxxx=sinclair.edu@zip.mail-list.com is blacklisted.
Affected lists: drmardy
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Domain: mailvault.com
Count: 2
Typical error: 550 relay not permitted
Affected lists: ptbuzz
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Domain: one-eyed-alien.net
Count: 1
Typical error: 550 5.7.1 >... Relaying denied
Affected lists: an-big-weekly-update