Warm up your Amazon SES mailboxes with MailPilot
MailPilot warms up Amazon SES sending identities over SMTP — you generate SES SMTP credentials, point MailPilot at your regional SES endpoint (e.g. email-smtp.us-east-1.amazonaws.com), and it sends warmup traffic through your verified SES domain. SES is unusually strict: new accounts start in the sandbox with tiny quotas, and dedicated IPs begin with no reputation at all. A slow, deliberate warmup is not optional on SES — it's the difference between clean deliverability and getting quarantined by AWS's own reputation dashboard.
How it works with Amazon SES
Leave the SES sandbox
Request production access so SES will send to unverified recipients, then generate SMTP credentials (an IAM SMTP username and password) from the SES console.
Verify your domain identity
Verify your sending domain in SES and publish its DKIM CNAMEs plus SPF. MailPilot confirms authentication so every warmup message is signed.
Warm dedicated IPs slowly
If you use SES dedicated IPs, they carry zero reputation. MailPilot ramps volume conservatively to satisfy AWS's expected warm-up curve and avoid throttling.
Track reputation & placement
MailPilot monitors inbox placement while you keep an eye on SES's bounce and complaint metrics — the numbers AWS uses to gate your account.
Why warm up Amazon SES
SES dedicated IPs launch with no reputation, and AWS expects a gradual ramp; send too fast and mailbox providers throttle you while SES's reputation dashboard flags the account.
SES enforces hard bounce and complaint-rate thresholds. A warmed mailbox generates clean engagement and near-zero complaints, keeping you well under AWS's limits.
SES only signs mail correctly once your domain identity and DKIM are verified — MailPilot checks SPF, DKIM, and DMARC so unauthenticated sends never sabotage the warmup.
Amazon SES warmup FAQ
Do I need to leave the SES sandbox before warming up? +
Yes. In the sandbox, SES only sends to verified addresses, which limits warmup. Request production access first, then generate SMTP credentials so MailPilot can send warmup traffic through your SES identity.
How does MailPilot warm an SES dedicated IP? +
A dedicated IP starts with zero reputation, so MailPilot ramps daily volume gradually along the curve AWS expects. This builds IP reputation steadily instead of triggering the throttling that hits IPs sent too much, too soon.
Will warmup affect my SES bounce and complaint rates? +
Positively. Warmup traffic goes to a real engaged peer network, so bounces and complaints stay near zero — which keeps you comfortably under the thresholds AWS uses to pause or restrict SES accounts.
Warm up Amazon SES the right way
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