One bad list won't take down your app's email
Bounced and complaining addresses are suppressed for you, and we check your bounce and complaint rates every hour, warning you before sending is paused.
Everything in deliverability guard
- Hourly health check
Every hour we look at your last 7 days, once you've sent at least 100 emails.
- A warning first
We email you when bounces pass 4% or complaints pass 0.08%.
- Paused before it gets worse
Above 8% bounces or 0.16% complaints, sending is paused and sends return 403 suspended. Contact support to review and lift it.
- Automatic suppressions
A hard bounce or a spam complaint suppresses the address, and a complaint also unsubscribes the contact.
- Suppressed recipients don't count
They're skipped, don't count towards your quota, and you get an email.suppressed event.
Built to reach the inbox
Every domain is signed with DKIM and sends bounces to its own return path, and the API looks after your reputation while you build.
| Type | Name | Value |
|---|---|---|
| TXT | iresendly._domainkey | p=MIGfMA0GCSq… |
| MX | send | feedback-smtp.eu-north-1.amazonses.com |
| TXT | send | v=spf1 include:amazonses.com ~all |
DMARC is recommended. The console shows the exact values for your domain and re-checks them for you.
- Automatic suppression
Addresses that bounced or complained are skipped on later sends, with an email.suppressed event so you know.
- Tracking only when you want it
Open and click tracking is off until you turn it on for a domain. Unsubscribe links are never rewritten.
- TLS your way
Each domain sends with opportunistic TLS, or enforced TLS when every message must be encrypted in transit.
- Reputation guardrails
Broadcasts pause if more than 5% of recipients bounce or complain, and sending pauses if your account's rates run too high.
From first step to done
- 1Verify DKIM and add DMARCSet up your domain fully before you send.
- 2Email people who askedAnd send marketing as broadcasts, which add unsubscribe links for you.
- 3Watch your ratesFollow bounce and complaint trends under Metrics in the console.
- Warning
- Bounces 4% · Complaints 0.08%
- Sending paused
- Bounces 8% · Complaints 0.16%
- Checked
- Every hour, over the last 7 days
- Starts after
- 100 emails
Ship email today
Start free with 3,000 emails a month. Upgrade only when you need more.
- 3,000 emails a month free
- No credit card needed
- Upgrade anytime
- 1Create your free accountGet an API key in seconds.
- 2Verify a sending domainAdd the DNS records we show you.
- 3Send with one requestcURL, Node.js, Python: plain HTTP.