posol.de

Valid Email Server

Domain Overview

DNS: ✓ 1mo ago Checker: ✓ 1mo ago
posol.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-06 15:10:46 UTC · ↺ Refresh

MX Hostnames

  • posol-de.mail.protection.outlook.com

MX Priorities

  • posol-de.mail.protection.outlook.com: 10

A / AAAA Records

  • 78.47.93.93 ↩ cp20.csactive.de
  • 2a01:4f8:1c17:4371::1 ↩ cp20.csactive.de

Mail Server IPs

  • 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
  • 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
  • 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
  • 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.csactive.de reg.csactive.de 2026011900 43200 7200 1209600 86400
Primary NS (mname)
ns1.csactive.de
Admin Email (rname)
reg@csactive.de
Serial
2026011900
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns1.csactive.de
ns2.csactive.de

SPF Record

✓ Strict (-all)
v=spf1 a mx ip4:78.46.93.86 ip4:138.201.157.184 ip6:2a01:4f8:c17:9cfd::1 ip4:80.147.85.190 a:hosc.posol.de a:posol.de a:www.posol.de include:spf.protection.outlook.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1

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

All TXT Records

2 records
  • SPFv=spf1 a mx ip4:78.46.93.86 ip4:138.201.157.184 ip6:2a01:4f8:c17:9cfd::1 ip4:80.147.85.190 a:hosc.posol.de a:posol.de a:www.posol.de include:spf.protection.outlook.com -all
  • MS=ms74874832
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