Deliverability handled on every send

Loops signs every email, watches each send, and stops mailing addresses that bounce or complain. You add a few DNS records and send to people who signed up.

More
Healthy
Handled for you
Welcome emailSuppressed
Password resetDelivered
October updateBatched
October updateSuppressed
Password resetRetrying
SafeguardsBuilt in
Manual review
Send pacing
Bounce suppression
Retries

Safeguards that run without you

Checks, suppression, and retries run on every send.

Send monitoring

Loops watches content, volume, and sending patterns as mail goes out.

Automatic suppression

A hard bounce or spam complaint stops every future send to that address.

Retries and pacing

Soft bounces are retried. Campaigns go out in rate-limited batches.

Checks before you send

Guardian flags missing fallbacks and buttons without links before an email goes out.

Authentication you copy once

Loops writes the records for you. Add them yourself, or hand a zone file or records page to whoever runs your DNS.

DKIM
Signs every email
no keys to rotate
SPF
Envelope subdomain
root SPF left alone
DMARC
Starts at p=none
tighten it later
MX
Bounce return path
bounces land here
Loops writes all four records. Add them to DNS and click Verify Records.

Clean lists from the first signup

Stop bad addresses at signup, then send to people who still engage.

Email blocklist

Block an address, a domain, or a whole TLD across forms, uploads, and the API.

Double opt-in

Unconfirmed form sign-ups stay out of marketing sends.

Forms with abuse protection

Loops forms include rate limiting and basic abuse protection.

Engaged segments

Send campaigns to recently active contacts. Third-party list cleaning flags valid addresses.

Watch the signals yourself

Loops reports what it sees and points you to what it can’t.

Bounces in your metrics

Every email shows its bounces and spam reports, in the app and the API.

Suppression API

Check if a contact is suppressed. Paid plans can lift it once the address works again.

Google Postmaster Tools

Gmail doesn’t report complaints to Loops. Postmaster Tools shows your Gmail spam rate.

An agent that audits your setup

The Loops email best practices skill reviews sender setup, lists, and content in your project.

Frequently asked questions

Does Loops guarantee inbox placement?

Which DNS records do I need to send with Loops?

What happens when an email bounces or gets marked as spam?

Should I send from a subdomain?

Can I send from more than one domain?

Do I need a domain warmup tool?