Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gls.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 20:07:45 UTC · ↺ Refresh
MX Hostnames
- gls-com.mail.protection.outlook.com
MX Priorities
- gls-com.mail.protection.outlook.com: 0
A / AAAA Records
- 66.194.25.152 ↩ 66-194-25-152.static.ctl.one
Mail Server IPs
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
- 2a01:111:f403:f903:: (no PTR)
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.gls.com infrastructure.gls.com 2026031101 3600 600 1209600 3600
Primary NS (mname)
ns1.gls.com
Admin Email (rname)
infrastructure@gls.com
Serial
2026031101
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns1.gls.com
ns2.gls.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.gls.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
mail._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
4 records- e2367e10-9beb-47f8-9766-53b23f3da3e4
- SPFv=spf1 include:_spf.gls.com -all
- MS=ms20668328
- anthropic-domain-verification-1wwp53=AhweaoctGixa3LNvqLgsXnLCq
Full email verification for gls.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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