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I haven't experienced getting added back to a blacklist off a significant webmail host after being taken off one. Once your IP is in the clear, it'd take some
by keyist 17y ago
I haven't experienced getting added back to a blacklist off a significant webmail host after being taken off one. Once your IP is in the clear, it'd take some abuse to be put back (anecdotal). These 3 steps usually get me unblocked if starting with a bad IP:
1. Set up reverse DNS for your IP address
2. Publish an SPF record
3. Check the Spamhaus lists http://www.spamhaus.org/query/bl?ip=1.2.3.4 http://www.spamhaus.org/query/bl?ip=1.2.3.4 and request removal if your IP address is on them.
As an addendum to grandparent: extremely comprehensive guide to postfix + dovecot here: http://workaround.org/ispmail http://workaround.org/ispmail
- eli 17y agoSpamhaus is one list. There are hundreds. (See http://www.dnsbl.info/dnsbl-list.php http://www.dnsbl.info/dnsbl-list.php for starters) Some are nearly impossible to get off of.
- wheels 17y agoBeen there, done that, didn't work. We don't even know why GMail was black-holing our mails, but we did everything on their suggested list for getting out of the world-o-pain and still often our mails were landing in the spam folder, hence the switch to SendGrid.