Mail from own server lands in spam sometimes, IP reputation suspicious
IP reputation builds up over weeks/months at Gmail, Outlook and major spam filters. A new IP, an IP shared with a spammer, or a spike after long quiet triggers rate limiters immediately.
Try this first
- 1Check your IP at talosintelligence.com (Cisco), senderscore.org and mxtoolbox.com blacklist-check. A few listings is survivable, ten means done.
- 2For Microsoft (Outlook/Hotmail) register the IP at Smart Network Data Services (SNDS) and JMRP, that gives you feedback.
- 3Gmail: monitor via Postmaster Tools, where you see domain reputation, IP reputation and spam rate.
- 4On a new IP: warm up slowly, 50 mails per day in week one, then double. Not 10,000 on day one.
- 5If you genuinely doubt your own IP, switch to a shared sender with good reputation (Postmark, Mailgun) and stop relaying yourself.
When to bring us in
If you have a blacklist listing and no time to delist at every RBL separately, we can move the sender setup to a professional relay.
See also
- Domain expires tomorrow and nobody saw the emailAn expired domain doesn't transfer instantly. There's a redemption window, but you pay extra.
- Unsure whether to enable auto-renewDisabling auto-renew only makes sense for domains you'll truly drop. For anything live, just keep it on.
- New registrar asks for auth code, can't find itEPP code or transfer code is the password to move a domain from registrar A to B.
None of the above fits?
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