Warming up Amazon SES means gradually increasing the volume of emails you send to build a positive sender reputation.
How it works:
If you start sending thousands of emails on day one, spam filters will flag you. Instead, SES recommends ramping up slowly, starting with just a few hundred a day, then scaling over weeks.
Why it matters:
A proper warmup helps your emails land in inboxes, not spam folders.
Tips:
- Start with low volume and increase gradually
- Send to engaged, opted-in contacts
- Use a warmup tool like Warmup Inbox to automate the process