sda1.io

Valid Email Server
Domain Lookup › sda1.io

Domain Overview

DNS: ✓ 13h ago Checker: ✓ 13h ago
sda1.io
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-20 11:04:12 UTC · ↺ Refresh

MX Hostnames

  • mail.protonmail.ch

MX Priorities

  • mail.protonmail.ch: 10

A / AAAA Records

  • 99.24.133.76 (no PTR)

Mail Server IPs

  • 176.119.200.128 ↩ mail.protonmail.ch
  • 185.205.70.128 ↩ mail.protonmail.ch
  • 185.70.42.128 ↩ mail.protonmail.ch

SOA Record

Raw SOA ns-1983.awsdns-55.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1983.awsdns-55.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-29.awsdns-03.com
ns-759.awsdns-30.net
ns-1405.awsdns-47.org
ns-1983.awsdns-55.co.uk

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.sda1.io include:_spf.protonmail.ch mx ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate 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

3 records
  • SPFv=spf1 include:_spf.sda1.io include:_spf.protonmail.ch mx ~all
  • amazonses:wiqvHKVbDtf1VZfQOi9NI3YJA29S4RaWpWxuDy2upao=
  • protonmail-verification=6fbea4e89c23272b1c7714c94d6a67008710eb64
Full email verification for sda1.io

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