sewerin.de

Valid Email Server
Domain Lookup › sewerin.de
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
sewerin.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-04 18:41:38 UTC · ↺ Refresh

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MX Hostnames

  • exchange.sewerin.com
  • exchange-400.sewerin.de

MX Priorities

  • exchange.sewerin.com: 10
  • exchange-400.sewerin.de: 50

A / AAAA Records

  • 178.16.61.85 ↩ r16297.agenturserver.it

Mail Server IPs

  • 92.39.20.236 ↩ exchange.sewerin.com
  • 178.208.115.123 ↩ dsl-178-208-115-123.fixip.bitel.net

SOA Record

Raw SOA ns04.iok.de server-providing.iok.net 2026062601 10800 3600 1209600 10800
Primary NS (mname)
ns04.iok.de
Admin Email (rname)
server-providing@iok.net
Serial
2026062601
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
10800s

Nameservers (NS)

ns01.iok.net
ns03.iok.net
ns04.iok.de
ns02.iok.net

SPF Record

✓ Strict (-all)
v=spf1 mx a:gate.sewerin.de a:exchange.sewerin.de a:exchange.sewerin.com a:exchange-400.sewerin.de include:agenturserver.de -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100; adkim=r; aspf=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • MS=ms25845531
  • SPFv=spf1 mx a:gate.sewerin.de a:exchange.sewerin.de a:exchange.sewerin.com a:exchange-400.sewerin.de include:agenturserver.de -all
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