sim1.tech

Valid Email Server
Domain Lookup › sim1.tech
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
sim1.tech
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-20 21:13:24 UTC · ↺ Refresh

MX Hostnames

  • sim1-tech.mail.protection.outlook.com

MX Priorities

No priority data.

A / AAAA Records

  • 199.60.103.36
  • 199.60.103.136

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

ns-29.awsdns-03.com
ns-827.awsdns-39.net
ns-1305.awsdns-35.org
ns-1606.awsdns-08.co.uk

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:8004593.spf05.hubspotemail.net include:20673135.spf01.hubspotemail.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 5 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • SPFv=spf1 include:spf.protection.outlook.com include:8004593.spf05.hubspotemail.net include:20673135.spf01.hubspotemail.net -all
  • MS=ms80822913
  • google-site-verification=IHHaXOp5QlD6QDACxmXYbnUK8FmnZW2Fqsr8IcOXNuo
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