Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ph-heidelberg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 17:26:43 UTC · ↺ Refresh
MX Hostnames
- relay.uni-heidelberg.de
- relay3.uni-heidelberg.de
- relay2.uni-heidelberg.de
MX Priorities
- relay2.uni-heidelberg.de: 20
- relay3.uni-heidelberg.de: 30
- relay.uni-heidelberg.de: 10
A / AAAA Records
- 217.29.41.33 ↩ vpro0400.proserver.punkt.de
Mail Server IPs
- 129.206.119.212 ↩ relay2.uni-heidelberg.de
- 129.206.100.213 ↩ relay3.uni-heidelberg.de
- 129.206.100.212 ↩ relay.uni-heidelberg.de
SOA Record
Raw SOA
mta02.ph-heidelberg.de hostmaster.ph-heidelberg.de 20260122 21600 1800 2419200 86400
Primary NS (mname)
mta02.ph-heidelberg.de
Admin Email (rname)
hostmaster@ph-heidelberg.de
Serial
20260122
Refresh
21600s
Retry
1800s
Expire
2419200s
Minimum TTL
86400s
Nameservers (NS)
dns1.belwue.de
dns5.belwue.de
dns3.belwue.de
dns2.uni-heidelberg.de
mta02.ph-heidelberg.de
dns.uni-heidelberg.de
SPF Record
✓ Soft Fail (~all)
v=spf1 mx ip4:193.197.132.76 include:spf.protection.outlook.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; adkim=r; aspf=r; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
s1._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- <20.06.2024>
- apple-domain-verification=pb0m1UCa2VdijgZH
- SPFv=spf1 mx ip4:193.197.132.76 include:spf.protection.outlook.com ~all
- google-site-verification=axN64Jm4Ze_Elo56d4uepXDyyPyixcQCQs1Bc_0m4-8
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