Connect your domain on Squarespace
Squarespace keeps MailFlat's records under custom records, alongside its own.
Squarespace adds your domain to whatever you type
Enter names without your domain — _mailflat-verify, not _mailflat-verify.acme.com. Typing the full name stores it as _mailflat-verify.acme.com.acme.com, and no amount of waiting will make that verify. In the dashboard, keep the Provider dropdown on name only and use the copy button next to each Host.
Where the DNS editor is
- Squarespace → Settings → Domains
- Pick your domain
- DNS Settings
- Add record (custom records)
Field names here: Host for the record name, Data for the value, Priority for MX priority.
The five records, as Squarespace wants them
Your real values are on Domains in the dashboard — the verification token and the DKIM key are unique to your domain. Everything else looks exactly like this.
| Type | Host | Data | What it does |
|---|---|---|---|
| TXT | _mailflat-verify | mf-verify-… (yours is in the dashboard) | Proves you own the domain. Verification fails without it. |
| MX | @ | mail.mailflat.net.Priority 10 — Priority | Routes incoming mail to MailFlat. |
| TXT | @ | v=spf1 include:mailflat.net ~all | Authorises MailFlat to send for your domain. |
| TXT | mail._domainkey | v=DKIM1; k=rsa; p=… (yours is in the dashboard) | Signs your outgoing mail. |
| TXT | _dmarc | v=DMARC1; p=none; | Tells receivers what to do when a check fails. |
Squarespace specifics
Squarespace adds your domain for you. @ is the root.
Add ours under custom records; leave Squarespace's own records alone.
If Squarespace email is active on the domain, it already owns the MX records — decide which service receives mail before adding ours, because two MX sets means mail lands wherever priority decides.
Then verify
Back on Domains, press Verify. If it fails, the message says what is actually wrong — including the case where your records landed one level too deep, with the exact name we found them under. DNS changes are usually visible within minutes; a failure that names a wrong record will not fix itself by waiting.
More on custom domains: Custom domains (BYOD).