retas.ch

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

Domain Overview

DNS: ⚡ live Checker: ⚡ live
retas.ch
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-09-09 09:24:49 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 52.59.120.70 ↩ eu-staticip2.multiscreensite.com
  • 18.197.248.23 ↩ eu-staticip.multiscreensite.com

Mail Server IPs

  • 52.101.185.114 ↩ mail-zrxpr04cu00102.inbound.protection.outlook.com
  • 52.101.209.28 ↩ mail-cpjpr05cu00104.inbound.protection.outlook.com
  • 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
  • 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:ca3c::6 ↩ mail-zrxpr04cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.gandi.net hostmaster.gandi.net 1788393600 10800 3600 604800 10800
Primary NS (mname)
ns1.gandi.net
Admin Email (rname)
hostmaster@gandi.net
Serial
1788393600
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s

Nameservers (NS)

ns-177-b.gandi.net
ns-183-c.gandi.net
ns-240-a.gandi.net

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

1 record
  • SPFv=spf1 include:spf.protection.outlook.com -all
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