Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
grossefehn.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 10:29:20 UTC · ↺ Refresh
MX Hostnames
- outlook.grossefehn.de
- mail.grossefehn.de
MX Priorities
- outlook.grossefehn.de: 9
- mail.grossefehn.de: 10
A / AAAA Records
- 85.114.145.197 ↩ nolis25.nol-is.de
Mail Server IPs
- 91.249.210.22 ↩ mail.grossefehn.de
SOA Record
Raw SOA
ns1079.ui-dns.biz hostmaster.1und1.com 2017060349 28800 7200 604800 600
Primary NS (mname)
ns1079.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060349
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1105.ui-dns.org
ns1074.ui-dns.de
ns1079.ui-dns.biz
ns1053.ui-dns.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx include:_spf.nol-is.de ip4:91.249.210.22 ?all
📊 DNS lookups: 2/10
? Neutral (?all) — no enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 mx include:_spf.nol-is.de ip4:91.249.210.22 ?all
- bYgahTANtksKYgcMv6uRYkCceoSAU/B2dNdNfmrcgYuzd5BWLeo2raFtu9MUZSNFRz4oEdhBkNJZONWuAAbvOA==
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for grossefehn.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits