Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
guardiantaxsolutions.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 17:28:27 UTC · ↺ Refresh
MX Hostnames
- guardiantaxsolutions-com.mail.protection.outlook.com
MX Priorities
- guardiantaxsolutions-com.mail.protection.outlook.com: 0
A / AAAA Records
- 13.57.77.193 ↩ ec2-13-57-77-193.us-west-1.compute.amazonaws.com
Mail Server IPs
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
peyton.ns.cloudflare.com dns.cloudflare.com 2399850353 10000 2400 604800 1800
Primary NS (mname)
peyton.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399850353
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
peyton.ns.cloudflare.com
robin.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 a mx include:sendgrid.net include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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 a mx include:sendgrid.net include:spf.protection.outlook.com -all
- MS=ms87690377
- MS=ms99713482
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