Domain lookup

Is mailna.co a disposable email domain?

Yes, mailna.co is a disposable email domain. IsItDisposable has tracked it since July 2026 and it currently resolves working mail servers.

Verdict

This domain is treated as disposable: a signup form protected by isitdisposable would flag it by default.

Mail Exchange (MX) status

This domain resolves working mail servers:

mx1.mailna.co
mx2.mailna.co
mx3.mailna.co
mx4.mailna.co
mx5.mailna.co

First seen Jul 5, 2026

Other .co domains we track

tempmail.co

654 other .co domains in our dataset.

90-day check activity

No check activity has been recorded for this domain yet.

Data updated Aug 4, 2026.

Check addresses like this one automatically

Call one Application Programming Interface (API) endpoint at signup and stop accepting disposable addresses like this one.

curl https://api.isitdisposable.com/v1/check \
  -H "Authorization: Bearer sk_live_..." \
  -H "content-type: application/json" \
  -d '{"domain": "mailna.co"}'

Start free Read the docs

Want the full picture? Read our complete guide to disposable email detection.