swt.de

Valid Email Server
Domain Lookup › swt.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
swt.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-23 08:52:21 UTC · ↺ Refresh

MX Hostnames

  • mx2.swt.de
  • mx1.swt.de

MX Priorities

  • mx2.swt.de: 5
  • mx1.swt.de: 5

A / AAAA Records

  • 212.88.148.230 ↩ www.favoritenergie.de

Mail Server IPs

  • 212.88.148.234 ↩ mx2.stadtwerke-trier.de
  • 212.88.148.233 ↩ mx1.stadtwerke-trier.de

SOA Record

Raw SOA ns1-03.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 900 2419200 900
Primary NS (mname)
ns1-03.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
900s
Expire
2419200s
Minimum TTL
900s

Nameservers (NS)

ns3-03.azure-dns.org
ns4-03.azure-dns.info
ns1-03.azure-dns.com
ns2-03.azure-dns.net

SPF Record

✓ Strict (-all)
v=spf1 a mx ip4:185.98.184.0/24 ip4:80.82.206.0/26 ip4:178.77.116.232 ip4:85.214.99.153 ip4:81.169.162.35 ip4:81.169.253.123 ip4:62.55.182.68 ip4:212.89.143.105 ip4:212.89.143.106 include:spf.docuguide.com include:spf.hornetsecurity.com include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; fo=1; adkim=r; aspf=r; pct=100; rf=afrf; ri=86400; sp=reject;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

DKIM Selectors

✗ None detected

No 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

5 records
  • VU1RE3JDPXDFASWRBLHZ7PSTMXOCV9LKQMEI1S30
  • google-site-verification=cv06NyknygLDsLgdC2UApCOypMswDsLNrnlCaFXYDp0
  • google-site-verification=k9T2t4xmMn9GOXs0Lxgxr1NNs2hvvbFkqI0RGZ8ZdvQ
  • SPFv=spf1 a mx ip4:185.98.184.0/24 ip4:80.82.206.0/26 ip4:178.77.116.232 ip4:85.214.99.153 ip4:81.169.162.35 ip4:81.169.253.123 ip4:62.55.182.68 ip4:212.89.143.105 ip4:212.89.143.106 include:spf.docuguide.com include:spf.hornetsecurity.com include:spf.protection.outlook.com -all
  • MS=ms66159625
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