gerstaecker.ch

Valid Email Server
Domain Lookup › gerstaecker.ch
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
gerstaecker.ch
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-10 19:46:33 UTC · ↺ Refresh

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MX Hostnames

  • gerstaecker-ch.mail.protection.outlook.com

MX Priorities

  • gerstaecker-ch.mail.protection.outlook.com: 0

A / AAAA Records

  • 138.199.245.111 ↩ ingress.polaris.smoxy.eu
  • 138.199.245.109 ↩ ingress.lyra.smoxy.eu

Mail Server IPs

  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com

SOA Record

Raw SOA kiki.bunny.net hostmaster.bunny.net 2021852147 7200 900 1209600 86400
Primary NS (mname)
kiki.bunny.net
Admin Email (rname)
hostmaster@bunny.net
Serial
2021852147
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

coco.bunny.net
kiki.bunny.net

SPF Record

✓ Strict (-all)
v=spf1 a:mailout-f2.arcor-ip.de a:filter001.docuguide.com a:mail.gerstaecker.com ip4:213.95.132.52/32 ip4:145.253.175.133/32 ip4:145.253.175.138/32 ip4:213.23.110.229/32 ip4:213.23.110.245/32 ip4:90.102.135.12/32 ip4:161.38.204.224/32 ip4:161.38.204.223/32 include:mailgun.org include:spf.docuguide.com include:spf.protection.outlook.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

5 records
  • google-site-verification=8BU_ipCkxZn8Bppre-wKBGe97v9mYHGzfkAdyievz-8
  • amazonses:0yfd8MuvGTxwhAiqfi9fdTnkGDJ2J2HjXRXSHJZ5LU8=
  • MS=ms97371221
  • SPFv=spf1 a:mailout-f2.arcor-ip.de a:filter001.docuguide.com a:mail.gerstaecker.com ip4:213.95.132.52/32 ip4:145.253.175.133/32 ip4:145.253.175.138/32 ip4:213.23.110.229/32 ip4:213.23.110.245/32 ip4:90.102.135.12/32 ip4:161.38.204.224/32 ip4:161.38.204.223/32 include:mailgun.org include:spf.docuguide.com include:spf.protection.outlook.com -all
  • ZOOM_verify_bljuKT7qP4Y53i1D3yiGiM
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