Email Blacklists: How to Check and Get Removed
What email blacklists are, how to tell if you are on one, and the steps to get delisted and stay off.
An email blacklist (or blocklist) is a database of IPs and domains flagged for sending spam. Land on a major one and your delivery can collapse overnight.
How to check
Use a multi-blacklist lookup tool with your sending IP and domain. Watch the big ones — Spamhaus especially — since a listing there hits hardest.
Why you got listed
- Hitting spam traps from a purchased or stale list.
- A complaint spike after an aggressive send.
- A compromised account or form sending spam in your name.
Send email that actually lands in the inbox
API and visual editor, SPF/DKIM/DMARC out of the box, analytics and warm IPs. Free tier — 200 emails/month, no card required.
Getting removed
Fix the root cause first — clean the list, secure the account — then submit a delisting request through the blacklist's process. Removal without a fix just gets you relisted.
Better: never get listed
Authentication, list hygiene and a managed reputation keep you off blacklists in the first place. Sendersy monitors reputation and handles the hard parts. Start free.
Строит инфраструктуру отправки Sendersy. Десять лет занимается доставляемостью, SPF/DKIM/DMARC и репутацией IP.
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