Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ihk-potsdam.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 15:46:21 UTC · ↺ Refresh
MX Hostnames
- mx02.ihk.de
- mx04.ihk.de
- mx01.ihk.de
MX Priorities
- mx01.ihk.de: 10
- mx04.ihk.de: 10
- mx02.ihk.de: 10
A / AAAA Records
- 51.38.104.145 ↩ ip145.ip-51-38-104.eu
Mail Server IPs
- 141.88.192.212 ↩ mx01.ihk.de
- 141.88.192.24 ↩ mx04.ihk.de
- 141.88.192.222 ↩ mx02.ihk.de
SOA Record
Raw SOA
ns1.ihk.de domain.gfi.ihk.de 2016090214 10800 3600 1209600 3600
Primary NS (mname)
ns1.ihk.de
Admin Email (rname)
domain@gfi.ihk.de
Serial
2016090214
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
d.ns14.net
c.ns14.net
b.ns14.net
ns1.ihk.de
ns2.ihk.de
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.mailjet.com include:spf.ihk.de include:spf.protection.outlook.com include:_spf.ntgt.de ip4:213.178.66.131 ip4:213.178.66.138 ip4:178.16.56.48 ip4:178.16.56.49 ip4:153.92.196.167 ip4:178.16.56.51 ip4:178.16.56.52 include:mailgun.org
📊 DNS lookups: 5/10
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; adkim=r; aspf=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- apple-domain-verification=ynEqORLwZEaLqJLW
- MS=ms62008440
- SPFv=spf1 include:spf.mailjet.com include:spf.ihk.de include:spf.protection.outlook.com include:_spf.ntgt.de ip4:213.178.66.131 ip4:213.178.66.138 ip4:178.16.56.48 ip4:178.16.56.49 ip4:153.92.196.167 ip4:178.16.56.51 ip4:178.16.56.52 include:mailgun.org
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 ihk-potsdam.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits