Choosing wrong either exposes you to neighbors' behavior or leaves an IP too cold to build reputation.
How to implement dedicated IP addresses#
- Estimate steady daily volume; below roughly 50,000 per day, shared pools usually perform better.
- If dedicated, warm up over 4 to 6 weeks and keep volume consistent.
- Separate transactional and marketing onto different IPs or pools.
- Monitor SNDS and Postmaster Tools per IP.
How to verify it worked#
Send a test message to seed mailboxes at Gmail, Outlook, and Yahoo, then inspect the Authentication-Results and delivery headers. Repeat after any DNS or sending-platform change.
Common mistakes#
- Buying a dedicated IP for a small list and letting it go cold.
- One dedicated IP for everything, so a promo blast delays receipts.
Frequently asked questions#
Do I need a dedicated IP for good deliverability?
No. Domain reputation dominates. Dedicated IPs are for high-volume senders who want isolation.