Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
uni-potsdam.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 10:07:47 UTC · ↺ Refresh
MX Hostnames
- mx2.uni-potsdam.de
- smtpin2.uni-potsdam.de
- smtpin.uni-potsdam.de
- mx1.uni-potsdam.de
MX Priorities
- mx1.uni-potsdam.de: 40
- smtpin2.uni-potsdam.de: 20
- smtpin.uni-potsdam.de: 10
- mx2.uni-potsdam.de: 50
A / AAAA Records
- 141.89.239.5 ↩ n-cmsv13-prod.rz.uni-potsdam.de
Mail Server IPs
- 141.89.64.18 ↩ smtpin.uni-potsdam.de
- 141.89.65.2 ↩ smtpin2.uni-potsdam.de
SOA Record
Raw SOA
ns1.uni-potsdam.de root.rz.uni-potsdam.de 2024121217 10800 3600 2419200 900
Primary NS (mname)
ns1.uni-potsdam.de
Admin Email (rname)
root@rz.uni-potsdam.de
Serial
2024121217
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
900s
Nameservers (NS)
deneb.dfn.de
ns2.uni-potsdam.de
ns1.uni-potsdam.de
dns-3.dfn.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:141.89.0.0/16 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1:d:s; adkim=r; aspf=r;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
selector1._domainkey
✓ Public key: 392 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
8 records- MS=45E3C90905CC87EE8DF150679F8ADA75DAEBF47B
- SPFv=spf1 ip4:141.89.0.0/16 -all
- apple-domain-verification=Gh1qmp8sA17o8ZvN
- HARICA-WqTyTnlP9LrCVuq8TFe
- _telesec-domain-validation=349631_2025-11-17_HNwcLkh03Ddy1qHs7A6aygcEJNVEHPiUW7N7R7Bnw0DvKHUiLu
- ab4be8ed12551736a76278b3402d8559
- google-site-verification=bvFklgX2769oDkgPohNT--p0EbinjjxjiPBYhYIeyB8
- google-site-verification=ZPdU16_maEnCAzHFl-8Bvx9SKmjCDC4CnJ80hVWQBRU
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