Domain Overview
DNS: ✓ 1mo ago
Checker: ✓ 1mo ago
hs-flensburg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-06 14:30:43 UTC · ↺ Refresh
MX Hostnames
- iron2-mail.hs-flensburg.de
- iron1-mail.hs-flensburg.de
MX Priorities
- iron2-mail.hs-flensburg.de: 20
- iron1-mail.hs-flensburg.de: 10
A / AAAA Records
- 193.175.191.141 ↩ hs-flensburg.de
Mail Server IPs
- 193.175.191.215 ↩ iron2-mail.hs-flensburg.de
- 193.175.191.214 ↩ iron1-mail.hs-flensburg.de
SOA Record
Raw SOA
dns1.fh-flensburg.de postmaster.hs-flensburg.de 2026033101 28800 7200 1814400 86400
Primary NS (mname)
dns1.fh-flensburg.de
Admin Email (rname)
postmaster@hs-flensburg.de
Serial
2026033101
Refresh
28800s
Retry
7200s
Expire
1814400s
Minimum TTL
86400s
Nameservers (NS)
dns-2.dfn.de
dns2.fh-flensburg.de
dns1.fh-flensburg.de
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a:iron1-mail.hs-flensburg.de a:iron2-mail.hs-flensburg.de a:fhf3.fh-flensburg.de a:mail.fh-flensburg.de a:mail.hs-flensburg.de a:mail.stud.hs-flensburg.de a:mail.stud.fh-flensburg.de ~all
📊 DNS lookups: 8/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- SPFv=spf1 mx a:iron1-mail.hs-flensburg.de a:iron2-mail.hs-flensburg.de a:fhf3.fh-flensburg.de a:mail.fh-flensburg.de a:mail.hs-flensburg.de a:mail.stud.hs-flensburg.de a:mail.stud.fh-flensburg.de ~all
- apple-domain-verification=DHq6WEN5tGuBCe6k
- MS=ms32206549
- cisco-ci-domain-verification=960c443f3c45b2a1cc4a2d397fc8813b74880e152935c080e0a8501ec83905
- adobe-idp-site-verification=d20e7cc2132aec5575f9486cef0b1bce3458bbe3ada59a052b4d70dcd3b26f2c
- google-site-verification=8rN0Z--_O1Q9SsS3ROv0V3fTg89QizUoyO4VftdIyms
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