Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mail.aachen.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 15:45:40 UTC · ↺ Refresh
MX Hostnames
- mail11.regioit-aachen.de
- mail10.regioit-aachen.de
- mail12.regioit-aachen.de
MX Priorities
- mail12.regioit-aachen.de: 10
- mail11.regioit-aachen.de: 10
- mail10.regioit-aachen.de: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 91.102.136.186 ↩ mail12.regioit-aachen.de
- 2a02:16f0::1:5 ↩ mail12.regioit-aachen.de
- 91.102.136.172 ↩ mail11.regioit-aachen.de
- 2a02:16f0::1:4 ↩ mail11.regioit-aachen.de
- 91.102.136.170 ↩ mail10.regioit-aachen.de
- 2a02:16f0::1:3 ↩ mail10.regioit-aachen.de
SOA Record
Raw SOA
dns01.regioit-aachen.de admin-tech-c.regioit.de 46 10800 3600 2419200 900
Primary NS (mname)
dns01.regioit-aachen.de
Admin Email (rname)
admin-tech-c@regioit.de
Serial
46
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
900s
Nameservers (NS)
dns-relaix.regioit-aachen.de
dns01.regioit-aachen.de
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:195.14.252.254 ip4:52.157.149.216 ip4:195.15.252.254 ip4:185.3.233.52 ip4:91.250.86.216 include:servers.mcsv.net include:spf.mailjet.com -all
📊 DNS lookups: 3/10
✓ 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
✓ 1 found
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- apple-domain-verification=JRUp8CrwFSgvuWTg
- apple-domain-verification=yBTC1yIXyCxByZfg
- ZOOM_verify_DOBtz2u2RX6xcq7T_YQtLg
- SPFv=spf1 mx ip4:195.14.252.254 ip4:52.157.149.216 ip4:195.15.252.254 ip4:185.3.233.52 ip4:91.250.86.216 include:servers.mcsv.net include:spf.mailjet.com -all
- DKIMv=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvI5+uI7u0fPLBCw0g78BCLvXQx45tCscRK+VQF/CZtog9PzPfc1T6CLAZHH/tUWLMYWTDtpLXUa0v34AodCDSZHshPcAynEeK2UZ4nCRgpN233Bh//axps1GstBSI0VtYW+2UA1X/SjoJ8b1CTokhFSMcoGSkU/7lwUmsj86Ok6/cK9heBtyWjmgL3gtTmMy3l9ar06hCWAQrAqafUJ9wpJIO2ohg1mbjAGQbKChEPhsFEAJW3azH2orMNxSwbXR73Ob0SIdgUK+rxjQSUiszbaXzmsJyvKS3JbU4ml0ofP030CVfqC9tOPKwAD5VoKtTxqJ5EUMn/+fjVYMDVjMawIDAQAB
- apple-domain-verification=f7sP4yGK0nAKHKKN
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