Email domain
mail.pt email servers, SPF and DMARC
Mail for @mail.pt goes to a.mx.gtt.smail.eu (MX priority 10) and 1 backup host, as DNS showed on 5 November 2026. The host sits under smail.eu. The domain publishes an SPF record ending in -all and no DMARC record, which decide whether mail claiming to be from @mail.pt is trusted.
Check one address
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mail.pt mail DNS on 5 November 2026
| Priority | MX host | Platform |
|---|---|---|
| 10 | a.mx.gtt.smail.eu | Not identified |
| 20 | b.mx.gtt.smail.eu | Not identified |
| SPF | v=spf1 ip4:195.23.133.192/26 include:_spfh.smail.eu -all |
|---|---|
| DMARC | None published |
| MTA-STS | None published |
| TLS reporting | None published |
Read on 5 November 2026 with dig against 1.1.1.1 (8.8.8.8 as fallback); nothing sent to the mail servers. Check the records today with the email provider lookup.
mail.pt MX records
mail.pt publishes 2 MX hosts; senders try the lowest priority number first (a.mx.gtt.smail.eu, 10) and fall back to the others in order.
1 other domain we checked on the same day also route mail to hosts under smail.eu, with different records from mail.pt: clix.pt.
mail.pt SPF record
The record on 5 November 2026 was v=spf1 ip4:195.23.133.192/26 include:_spfh.smail.eu -all.
In plain terms, it delegates to _spfh.smail.eu and lists 1 IP range directly. The top level uses 1 DNS-querying term; SPF allows 10 in total including nested includes (RFC 7208 §4.6.4).
It ends in a hard fail (-all): receivers may reject mail from any server the record does not list.
mail.pt DMARC policy
_dmarc.mail.pt returned no DMARC record on 5 November 2026. Receivers therefore get no instruction about mail that fails SPF and DKIM, which makes @mail.pt easier to spoof (RFC 7489).
Can you verify @mail.pt addresses?
Our checker treats @mail.pt like any domain: syntax, MX, disposable and role checks first, then a made-up address to rule out a catch-all, then your address at RCPT TO, disconnecting without sending. We have not published a test of how a.mx.gtt.smail.eu answers for @mail.pt, so we make no claim here about whether single mailboxes can be confirmed; each result carries its own reason.
Cleaning a list with these addresses
DNS tells you where mail goes, not whether one person's mailbox still exists. For a list, run the whole file through a verifier before you send: invalid rows come out, risky rows (catch-all, unknown, refused) go in their own segment, and valid rows are safe to mail.
Common questions
- What are the MX records for mail.pt?
- On 5 November 2026:
a.mx.gtt.smail.eu(priority 10),b.mx.gtt.smail.eu(priority 20). - Does mail.pt have SPF and DMARC?
- On 5 November 2026
mail.ptpublished an SPF record ending in-alland no DMARC record. - Is mail.pt a disposable email domain?
- No.
mail.ptis not on the disposable domain list our checker uses, so @mail.pt addresses are checked like any other mailbox. See the disposable domain checker for the list.
Free checks for @mail.pt lists
- Bulk email checker for a pasted list or CSV
- Verify a whole file with a reason for every row
- SPF lookup counter
- MTA-STS checker
- Disposable email checker
Another domain? See every email domain we have mapped and what our checker does at each mailbox provider.
Got a list with @mail.pt addresses?
Sign in with Google and the first 100 addresses are checked free: valid, risky and invalid, with the reason for each row and a file to download. No card. After that, plans start at $9/mo for 2,500 emails a month.
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