Is aon.at a valid email domain?
Mail for aon.at is handled by 1 server, with smx01.a1.net tried first.
It is a free, public mailbox provider, and it is not on our disposable list.
SPF is published and ends with -all. DMARC is set to reject.
Check an email address at aon.at
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MX records
| Priority | Mail server | Resolves to |
|---|---|---|
| 10 | smx01.a1.net | 80.75.42.227 |
SPF
Record published
v=spf1 include:aspf.a1.net -all
DMARC
Policy: reject
v=DMARC1; p=reject; rua=mailto:dmarc-reports@a1.net
Disposable?
No, not on our disposable list.
Free provider?
Yes, a free public mailbox provider.
What this means for your email list
Is a free-provider address a problem?
Not by itself. aon.at is a normal mailbox provider used by real people, and mail to it is delivered reliably. The thing to watch is whether the specific mailbox exists, which a domain check cannot tell you, so verify each address.
Sender authentication
aon.at has a strict DMARC policy (reject): mail that fails authentication is refused, which protects its brand from spoofing and means anyone sending as aon.at must have SPF and DKIM set up correctly.
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Sign up to get a report summary →Frequently asked questions
- Is aon.at a valid email domain?
- Yes. aon.at publishes 1 MX record and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
- Is aon.at a disposable email domain?
- No. aon.at is not on our disposable list, but it is a free public provider. The list is updated regularly, and new throwaway domains appear all the time.
- What are the MX records for aon.at?
- smx01.a1.net (priority 10).
- Does aon.at have SPF and DMARC?
- SPF: yes, ending -all. DMARC: yes, policy reject.