Domain Overview
DNS: โ 2mo ago
Checker: โ 2mo ago
oas.de
Yes
โ Yes
Unknown
No
No
โ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
ยท 2026-03-23 09:35:51 UTC ยท โบ Refresh
MX Hostnames
- gw.oas.de
- mail.oas.de
MX Priorities
- mail.oas.de: 10
- gw.oas.de: 20
A / AAAA Records
- 82.198.206.121 โฉ mail.oas.de
Mail Server IPs
- 82.198.206.121 โฉ mail.oas.de
- 82.198.206.113 โฉ gw.oas.de
SOA Record
Raw SOA
auth04.ns.de.uu.net hostmaster.de.uu.net 2026031101 28800 7200 2678400 1800
Primary NS (mname)
auth04.ns.de.uu.net
Admin Email (rname)
hostmaster@de.uu.net
Serial
2026031101
Refresh
28800s
Retry
7200s
Expire
2678400s
Minimum TTL
1800s
Nameservers (NS)
auth54.ns.de.uu.net
auth04.ns.de.uu.net
auth40.ns.uu.net
SPF Record
โ Soft Fail (~all)
v=spf1 mx include:spf.sendinblue.com include:spf.protection.outlook.com ~all
๐ DNS lookups: 3/10
~ Soft fail (~all) โ moderate enforcement
DMARC Record
โ p=none
v=DMARC1; p=none; sp=none; rua=mailto:[email protected]!10m; ruf=mailto:[email protected]!10m; rf=afrf; pct=100; ri=86400
โ p=none โ monitoring only, no enforcement
๐ SPF alignment: Relaxed
ยท DKIM alignment: Relaxed
๐ง Reports โ mailto:[email protected]!10m
โณ Subdomain policy: none
DKIM Selectors
โ 1 found
mail._domainkey
โ Public key: 216 chars (valid)
โ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- sendinblue-site-verification=4370137
- google-site-verification=ti3qd7fYzDRw0FMfkfQ1ebReLJQR3Q4enB5ABnc15cA
- MS=ms50413501
- SPFv=spf1 mx include:spf.sendinblue.com include:spf.protection.outlook.com ~all
- google-site-verification=w-YA3eiDZrr3t0piTY0btG1cHKW_5byza1kRHrHIp5E
- Sendinblue-code:8a324e830e691b0e1b32e936375c4f0e
- fYM/YqxWau5bRUrBSHscgRv9P2zFK3Gp1Gr+JYTS6VDbcZxiOUd7yMr5uF9IKEYCU5+oG0GXjviM4+qtP20YGA==
Free ยท No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts โ unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code ยท Works on any site
See demo & docs
Deep verification
Full email verification for oas.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits