rtsi.ch

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

Domain Overview

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

Checked via [email protected] · 2026-09-11 04:20:48 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

  • rtsi-ch.mail.protection.outlook.com: 10

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 52.101.73.145 ↩ mail-am6pr02cu00301.inbound.protection.outlook.com
  • 52.101.103.36 ↩ mail-miypr05cu00104.inbound.protection.outlook.com
  • 52.101.181.153 ↩ mail-wa4pr04cu00101.inbound.protection.outlook.com
  • 52.101.73.155 ↩ mail-am7pr02cu00203.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
  • 2a01:111:f403:ca48::12 ↩ mail-miypr05cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca3c::8 ↩ mail-zrxpr05cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA dns1.p07.nsone.net hostmaster.nsone.net 1594036432 43200 7200 1209600 3600
Primary NS (mname)
dns1.p07.nsone.net
Admin Email (rname)
hostmaster@nsone.net
Serial
1594036432
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

ns-1490.awsdns-58.org
ns-1660.awsdns-15.co.uk
ns-181.awsdns-22.com
ns-544.awsdns-04.net
dns1.p07.nsone.net
dns2.p07.nsone.net
dns3.p07.nsone.net
dns4.p07.nsone.net

SPF Record

✓ Strict (-all)
v=spf1 mx a:smtp1.rsi.ch a:smtp2.rsi.ch a:out1.srgssr.ch a:out2.srgssr.ch a:smtp365.srgssr.ch include:spf.protection.outlook.com -all
📊 DNS lookups: 7/10
✓ 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 mx a:smtp1.rsi.ch a:smtp2.rsi.ch a:out1.srgssr.ch a:out2.srgssr.ch a:smtp365.srgssr.ch include:spf.protection.outlook.com -all
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