Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mss-bb.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 22:03:29 UTC · ↺ Refresh
MX Hostnames
- mail.mss-bb.de
- relay.rzone.de
MX Priorities
- relay.rzone.de: 100
- mail.mss-bb.de: 20
A / AAAA Records
- 81.169.145.88 ↩ w88.rzone.de
- 2a01:238:20a:202:1088:: ↩ w88.rzone.de
Mail Server IPs
- 81.169.145.96 ↩ relay.rzone.de
- 141.47.248.34 ↩ gwserver01.mss-bb.de
SOA Record
Raw SOA
docks02.rzone.de hostmaster.strato-rz.de 2023101355 86400 7200 604800 300
Primary NS (mname)
docks02.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2023101355
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades11.rzone.de
docks02.rzone.de
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a:smtpgw.mss-bb.de ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; pct=5
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 5% of failing messages only
DKIM Selectors
✓ 1 found
s1._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
3 records- SPFv=spf1 mx a:smtpgw.mss-bb.de ~all
- "Mildred-Scheel-Schule, Austr. 7, 71034 Boeblingen"
- MS=91E1C7DEDA305887197CE1B37BD3E000A8E0BDB0
Full email verification for mss-bb.de
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