Is atlas.cz a valid email domain?
Mail for atlas.cz is handled by 4 servers, with atlas-cz-10mx1.eco-mx.cz tried first.
It is a free, public mailbox provider, and it is not on our disposable list.
SPF is published. DMARC is set to none.
Check an email address at atlas.cz
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MX records
| Priority | Mail server | Resolves to |
|---|---|---|
| 10 | atlas-cz-10mx1.eco-mx.cz | 46.255.225.8 |
| 10 | atlas-cz-10mx2.eco-mx.cz | 46.255.227.8 |
| 20 | atlas-cz-20mx2.eco-mx.cz | 46.255.225.8 |
| 20 | atlas-cz-20mx1.eco-mx.cz | 46.255.227.8 |
SPF
Record published
v=spf1 redirect=_spf.centrum.cz
DMARC
Policy: none
v=DMARC1; p=none; rua=mailto:dmarc@centrum.cz; ruf=mailto:dmarcf@centrum.cz
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. atlas.cz 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
atlas.cz has DMARC in monitoring mode (p=none). It collects reports but does not yet block spoofed mail, so the domain is easier to impersonate.
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Sign up to get a report summary →Frequently asked questions
- Is atlas.cz a valid email domain?
- Yes. atlas.cz publishes 4 MX records and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
- Is atlas.cz a disposable email domain?
- No. atlas.cz 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 atlas.cz?
- atlas-cz-10mx1.eco-mx.cz (priority 10); atlas-cz-10mx2.eco-mx.cz (priority 10); atlas-cz-20mx2.eco-mx.cz (priority 20); atlas-cz-20mx1.eco-mx.cz (priority 20).
- Does atlas.cz have SPF and DMARC?
- SPF: yes. DMARC: yes, policy none.