Most troublesome domains:
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Domain: mailvault.com
Count: 8
Typical error: 550 relay not permitted
Affected lists: privacyworld
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Domain: ctv.es
Count: 6
Typical error: 550 Spam detected
Affected lists: trade_journal absolutecigarsgoldclub
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Domain: izmiran.ru
Count: 3
Typical error: 550 5.7.1 >... Command rejected
Affected lists: privacyworld
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Domain: apicshq.org
Count: 3
Typical error: 501 5.7.1 This system is not configured to relay mail from > to > for 64.241.105.8
Affected lists: capitol-reader
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Domain: alliedhomenet.com
Count: 3
Typical error: 550 This system is configured to reject mail from 12.53.208.131 [12.53.208.131] (Host blacklisted - Found on Realtime Black List server '131.208.53.12.blackholes.uceb.org')
Affected lists: absolutecigarsgoldclub
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Domain: fernheim.com.py
Count: 3
Typical error: 554 Content filter will not allow this message (Mode: normal)
Affected lists: wwrecipes
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Domain: uniweb.net.co
Count: 3
Typical error: 554 Failure Message looks like spam, sorry not wanted here q=33329218
Affected lists: wwrecipes
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Domain: jet.es
Count: 3
Typical error: 550 Spam detected
Affected lists: wwrecipes
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Domain: mixmail.com
Count: 3
Typical error: 550 Spam detected
Affected lists: absolutecigarsgoldclub
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Domain: auhsd.k12.ca.us
Count: 3
Typical error: 550-5.7.1 >: User is not accepting mail having this content\n550-5.7.1 I'm having problems receiving your message, if you add YYY anywhere on the subject line and resend your message I'll make sure it is delivered.\n550 Spam Filter
Affected lists: angelanimals