How to Choose between a dedicated and shared IP

Here is how to choose between a dedicated and shared IP, step by step.

The steps

Use a dedicated IP when you send consistent volume and want full control of reputation; use shared only for low, sporadic volume.

Why it matters

Getting this right is part of landing in the inbox instead of spam. See the full deliverability checklist.

How Rainmail helps

Rainmail sends from your own domain on a dedicated, isolated IP with SPF, DKIM, DMARC, reverse-DNS and managed warm-up handled for you, plus an AI that watches your list health and deliverability — and it welcomes the senders Amazon SES, SendGrid and Mailchimp reject, from $8. Run the free 10-second checker or see plans.