postfactory.org

Valid Email Server
Domain Lookup › postfactory.org

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
postfactory.org
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-28 05:37:29 UTC · ↺ Refresh

MX Hostnames

  • mailgw.insigma.de

MX Priorities

  • mailgw.insigma.de: 10

A / AAAA Records

  • 217.160.0.78 ↩ 217-160-0-78.elastic-ssl.ui-r.com

Mail Server IPs

  • 91.226.162.15 ↩ mailgw.insigma.de

SOA Record

Raw SOA ns1108.ui-dns.de hostmaster.schlund.de 2017051722 28800 7200 604800 300
Primary NS (mname)
ns1108.ui-dns.de
Admin Email (rname)
hostmaster@schlund.de
Serial
2017051722
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1108.ui-dns.de
ns1108.ui-dns.org
ns1108.ui-dns.com
ns1108.ui-dns.biz

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:78.35.7.139 include:spf.protection.outlook.com include:_spf.perfora.net include:_spf.kundenserver.de include:_spf-eu.ionos.com include:spf-policy.mailrelay-out.netcologne.de ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

3 records
  • google-site-verification=ZEWsZpcwFhM4rOpdi9uZFYzphIhfbZGDvqla-ncUGt0
  • SPFv=spf1 ip4:78.35.7.139 include:spf.protection.outlook.com include:_spf.perfora.net include:_spf.kundenserver.de include:_spf-eu.ionos.com include:spf-policy.mailrelay-out.netcologne.de ~all
  • MS=ms51678334
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