proton.net

Valid Email Server
Domain Lookup › proton.net

Domain Overview

DNS: ✓ 5h ago Checker: ✓ 5h ago
proton.net
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-10-04 11:11:09 UTC · ↺ Refresh

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MX Hostnames

  • proton-net.mail.protection.outlook.com

MX Priorities

  • proton-net.mail.protection.outlook.com: 0

A / AAAA Records

  • 109.237.136.6 ↩ alfa3042.alfahosting-server.de

Mail Server IPs

  • 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
  • 52.101.73.120 ↩ mail-am7pr02cu00300.inbound.protection.outlook.com
  • 52.101.73.155 ↩ mail-am7pr02cu00203.inbound.protection.outlook.com
  • 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::a ↩ mail-am7pr02cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::24 ↩ mail-am6pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca38::a ↩ mail-wa4pr05cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com

SOA Record

Raw SOA cns1.alfahosting.info hostmaster.alfahosting.de 2025071409 28800 7200 604800 86400
Primary NS (mname)
cns1.alfahosting.info
Admin Email (rname)
hostmaster@alfahosting.de
Serial
2025071409
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

cns3.alfahosting.info
cns1.alfahosting.info
cns2.alfahosting.info

SPF Record

✓ Strict (-all)
v=spf1 ip4:130.180.0.150 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 ip4:130.180.0.150 include:spf.protection.outlook.com -all
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