Most troublesome domains:
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Domain: wanadoo.es
Count: 15
Typical error: 550 Spam detected
Affected lists: naomiragen an-big-weekly-update
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Domain: scarlet.be
Count: 3
Typical error: 550 5.7.1 bulkmail m5RLc5oC009483 from 12.53.208.131 rejected
Affected lists: the-daily-signal
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Domain: usarec.army.mil
Count: 3
Typical error: 552 #5.3.4 message size exceeds limit
Affected lists: charlynecares
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Domain: clsphila.org
Count: 3
Typical error: 550 Blocked
Affected lists: wwrecipes
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Domain: stifel.com
Count: 2
Typical error: 550 5.7.1 Message rejected.
Affected lists: naomiragen
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Domain: i.am
Count: 2
Typical error: 554 >: Relay access denied
Affected lists: gourmetinternational
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Domain: mhasp.org
Count: 1
Typical error: 553 mailbox xxxx@mhasp.org is restricted (Mode: normal)
Affected lists: pjalert
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Domain: box-shift.co.uk
Count: 1
Typical error: 550 5.7.1 Unable to relay for xxxx@box-shift.co.uk
Affected lists: belizenews
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Domain: dayton-unitedway.org
Count: 1
Typical error: 550 5.7.1 >... Relaying denied. Proper authentication required.
Affected lists: pjalert
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Domain: acadiau.ca
Count: 1
Typical error: 555 5.7.1 Client host rejected: cannot find your hostname, [12.53.208.132]
Affected lists: wwrecipes