Amazon SES vs SendGrid: Which Should You Use in 2026?

Amazon SES vs SendGrid — here is the honest comparison, and a third option worth knowing.

The short version

SES is the cheapest raw send but ships as bare infrastructure with a sandbox and no support; SendGrid adds UI, analytics and deliverability tooling at higher cost.

The thing both share

On shared IP pools, your reputation depends partly on other senders, and both will review or restrict 'high-risk' senders. A dedicated, isolated IP with managed deliverability avoids that entirely.

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.