Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
grplantmaint.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 05:01:30 UTC · ↺ Refresh
MX Hostnames
- grplantmaint-com.mail.protection.outlook.com
MX Priorities
- grplantmaint-com.mail.protection.outlook.com: 0
A / AAAA Records
- 52.71.222.18 ↩ ec2-52-71-222-18.compute-1.amazonaws.com
Mail Server IPs
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
- 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.earthlink.net hostmaster.earthlink.net 2024022321 86400 86400 3600000 86400
Primary NS (mname)
dns1.earthlink.net
Admin Email (rname)
hostmaster@earthlink.net
Serial
2024022321
Refresh
86400s
Retry
86400s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
dns1.earthlink.net
dns3.earthlink.net
dns2.earthlink.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo 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- MS=ms55884912
- pax8validate
- SPFv=spf1 include:spf.protection.outlook.com -all
Full email verification for grplantmaint.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits