Is t-online.at a valid email domain?
t-online.at has no MX record, so mail falls back to the domain's own address record. Most senders still deliver, but it is a fragile setup.
It is not a free provider and is not on our disposable list, so addresses here usually belong to a company, school or other organisation.
No SPF record was found. No DMARC policy was found either.
Check an email address at t-online.at
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MX records
| Priority | Mail server | Resolves to |
|---|---|---|
| 0 | t-online.at | 80.158.66.24 |
SPF
No record found
DMARC
No record found
Disposable?
No, not on our disposable list.
Free provider?
No, not a known free provider.
What this means for your email list
What this means for addresses at this domain
Mail routing for t-online.at is healthy, so the domain is not the risk. The risk is the mailbox: outdated contacts, shared inboxes and catch-all servers. A mailbox-level check tells you which addresses are safe to send to.
Sender authentication
t-online.at has no DMARC policy, so receivers have no instruction on what to do with mail that fails authentication. Large mailbox providers now expect bulk senders to publish one.
✨ Report summary
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Sign up to get a report summary →Frequently asked questions
- Is t-online.at a valid email domain?
- Yes. t-online.at publishes an address record that mail falls back to and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
- Is t-online.at a disposable email domain?
- No. t-online.at is not on our disposable list. The list is updated regularly, and new throwaway domains appear all the time.
- What are the MX records for t-online.at?
- t-online.at (priority 0).
- Does t-online.at have SPF and DMARC?
- SPF: no record found. DMARC: no record found.