Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
schmidtcolleg.de
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 13:31:33 UTC · ↺ Refresh
MX Hostnames
- alt2.aspmx.l.google.com
- alt3.aspmx.l.google.com
- alt1.aspmx.l.google.com
- aspmx.l.google.com
MX Priorities
- alt1.aspmx.l.google.com: 20
- alt3.aspmx.l.google.com: 200
- aspmx.l.google.com: 10
- alt2.aspmx.l.google.com: 100
A / AAAA Records
- 37.148.202.139 ↩ 139.202.148.37.host.secureserver.net
Mail Server IPs
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 142.251.163.27 ↩ wv-in-f27.1e100.net
- 2607:f8b0:4004:c07::1b ↩ bc-in-f27.1e100.net
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
SOA Record
Raw SOA
ns3.stratoserver.net hostmaster.strato-rz.de 2020120540 86400 7200 604800 300
Primary NS (mname)
ns3.stratoserver.net
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020120540
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns4.stratoserver.net
ns3.stratoserver.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:94.186.159.195 include:_spf.google.com include:mailrelay.opencrm.eu ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; aspf=r; adkim=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: quarantine
DKIM Selectors
✗ None detectedNo 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
4 records- google-site-verification=53PGIZari1hqaNpWxCySIN_TFOuMPWcrFhyDfrb1q_A
- google-site-verification=ZxsspoIkdco73xR-mJWBc3RrqPW0I8nTZOfBI6D4SPM
- google-site-verification=lX48QuClX2ttBsKX3sf_yu_kqTbtAO2lO0eTLLPuS0U
- SPFv=spf1 ip4:94.186.159.195 include:_spf.google.com include:mailrelay.opencrm.eu ~all
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