Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gerstel.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 08:21:15 UTC · ↺ Refresh
MX Hostnames
- gerstel-de.mail.protection.outlook.com
MX Priorities
- gerstel-de.mail.protection.outlook.com: 10
A / AAAA Records
- 172.67.171.150 (no PTR)
- 104.21.63.178 (no PTR)
- 2606:4700:3034::ac43:ab96
- 2606:4700:3035::6815:3fb2
Mail Server IPs
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
SOA Record
Raw SOA
deborah.ns.cloudflare.com dns.cloudflare.com 2399361102 10000 2400 604800 1800
Primary NS (mname)
deborah.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399361102
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
rayden.ns.cloudflare.com
deborah.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a:mh0002.gerstel.com ip4:93.240.223.82 include:spf.mandrillapp.com include:spf.protection.outlook.com include:143540485.spf07.hubspotemail.net ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=s; aspf=s; pct=100
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
selector1._domainkey
✓ Public key: 392 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
5 records- google-site-verification=sawEWUmkGWgQE5pZzPQ-PBgIDWzFwJrf_93WmqYORhY
- SPFv=spf1 mx a:mh0002.gerstel.com ip4:93.240.223.82 include:spf.mandrillapp.com include:spf.protection.outlook.com include:143540485.spf07.hubspotemail.net ~all
- webexdomainverification.16ZJ1=f6b15028-e307-4fbd-9d62-ae9f613c17b6
- MS=ms42469541
- apple-domain-verification=jQFHxwTpGB4mT6sR
Full email verification for gerstel.de
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