Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ins.uni-bonn.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 06:25:35 UTC · ↺ Refresh
MX Hostnames
- mail.ins.uni-bonn.de
MX Priorities
- mail.ins.uni-bonn.de: 10
A / AAAA Records
- 131.220.223.16 ↩ bajor.ins.uni-bonn.de
Mail Server IPs
- 131.220.223.13 ↩ mail.ins.uni-bonn.de
SOA Record
Raw SOA
nic.ins.uni-bonn.de operator.ins.uni-bonn.de 2026030602 28800 7200 604800 86400
Primary NS (mname)
nic.ins.uni-bonn.de
Admin Email (rname)
operator@ins.uni-bonn.de
Serial
2026030602
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
nic.ins.uni-bonn.de
dns1.uni-bonn.de
dns3.uni-bonn.de
dns2.uni-bonn.de
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:131.220.223.13 mx ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; fo=1; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: quarantine
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- google-site-verification=WzghYYnGkXGoGkOIDeTatfmVrAtOTaq3WUwds-wnuPo
- SPFv=spf1 ip4:131.220.223.13 mx ~all
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