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Send email with Lessly Mail

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Verify a sending domain and send your first email.

Problem

You want to send product or transactional email from your own domain, with DKIM, SPF, and DMARC set up so it reaches the inbox instead of spam.

UI

1. In app.lessly.com, open the mail settings for your product.
2. Add a sending domain — a subdomain you control, for example send.yourdomain.com. Lessly returns the DNS records to publish.
3. At your DNS provider, add the records Lessly shows: the DKIM CNAMEs, the bounce MX and SPF records, and a DMARC TXT.
4. Click Verify. Once the DKIM records resolve, the domain goes active.
5. Send from any address at that domain.

MCP

The same flow through the Lessly MCP server in your agent. Token scope: a key with write access to your product’s mail settings.

Register the domain and read the records back:

“Set up send.example.com as a sending domain and show me the DNS records to add.”

Your agent returns the DKIM CNAMEs, a bounce MX and SPF record, and a DMARC TXT. Publish them at your DNS provider, then verify:

“Verify send.example.com.”

Once it reports verified, send:

“Send a test email from hello@send.example.com to me@example.com, subject ‘Hello’, body ‘It works.’”

Verify it works

1. The domain shows status verified, with the DKIM records resolved.
2. Send one email to an address you can check.
3. It lands in the Inbox, not spam, and the message headers show DKIM, SPF, and DMARC all pass.

Variations

Pick a subdomain, not your apex. Send from send.yourdomain.com (or mail., notifications.) rather than yourdomain.com itself. Mail DNS stays isolated from the records that serve your website, so changing one never risks the other.