Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bistum-mainz.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 15:06:37 UTC · ↺ Refresh
MX Hostnames
- mail2.bistum-mainz.de
- mail.bistum-mainz.de
MX Priorities
- mail.bistum-mainz.de: 10
- mail2.bistum-mainz.de: 20
A / AAAA Records
- 194.9.0.111 ↩ bistum-mainz.de
Mail Server IPs
- 194.9.0.51 ↩ mail.bistum-mainz.de
- 194.9.0.52 ↩ mail2.bistum-mainz.de
SOA Record
Raw SOA
dns.w-s-r.de hostmaster.bistum-mainz.de 2021112845 28800 3600 1209600 86400
Primary NS (mname)
dns.w-s-r.de
Admin Email (rname)
hostmaster@bistum-mainz.de
Serial
2021112845
Refresh
28800s
Retry
3600s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns03.nemsis.de
dns.w-s-r.de
dns2.w-s-r.de
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.bistum-mainz.de include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 mx include:spf.bistum-mainz.de include:spf.protection.outlook.com -all
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 bistum-mainz.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits