Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gptransco.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 18:45:48 UTC · ↺ Refresh
MX Hostnames
- gptransco-com.mail.protection.outlook.com
MX Priorities
- gptransco-com.mail.protection.outlook.com: 0
A / AAAA Records
- 216.24.57.1 (no PTR)
Mail Server IPs
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.dreamhost.com hostmaster.dreamhost.com 2026032700 20577 600 1814400 60
Primary NS (mname)
ns1.dreamhost.com
Admin Email (rname)
hostmaster@dreamhost.com
Serial
2026032700
Refresh
20577s
Retry
600s
Expire
1814400s
Minimum TTL
60s
Nameservers (NS)
ns2.dreamhost.com
ns3.dreamhost.com
ns1.dreamhost.com
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:207.254.210.114/32 ip4:130.250.169.40/32 ip4:20.94.79.72/32 include:spf.protection.outlook.com include:sendgrid.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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- MS=ms26737175
- google-site-verification=Vuo9z_EOgH-cqdWJHtYN_u7xUei6tdD5P8LRrGGEpks
- SPFv=spf1 a mx ip4:207.254.210.114/32 ip4:130.250.169.40/32 ip4:20.94.79.72/32 include:spf.protection.outlook.com include:sendgrid.net -all
- apple-domain-verification=o9ZnvJvDYZkPCR9P
Full email verification for gptransco.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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