straubinc.com

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
straubinc.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-19 21:53:59 UTC · ↺ Refresh

MX Hostnames

  • mx1.mtaroutes.com
  • mx4.mtaroutes.com
  • straubinc-com.mail.protection.outlook.com
  • mx2.mtaroutes.com
  • mx3.mtaroutes.com

MX Priorities

  • straubinc-com.mail.protection.outlook.com: 50
  • mx1.mtaroutes.com: 10
  • mx2.mtaroutes.com: 20
  • mx3.mtaroutes.com: 30
  • mx4.mtaroutes.com: 40

A / AAAA Records

  • 104.21.38.223
  • 172.67.140.57
  • 2606:4700:3032::ac43:8c39
  • 2606:4700:3032::6815:26df

Mail Server IPs

  • 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
  • 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
  • 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
  • 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
  • 38.89.254.156 ↩ fe1-r2-in.ch03.l.antispamcloud.com
  • 2001:550:2:78::ca:100 ↩ fe3-r2-in.atl06.l.antispamcloud.com
  • 2001:550:2:61::2fc:100
  • 38.71.16.244
  • 2001:550:2:3::62:100
  • 38.101.250.150

SOA Record

Raw SOA mira.ns.cloudflare.com dns.cloudflare.com 2397896642 10000 2400 604800 1800
Primary NS (mname)
mira.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397896642
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

trey.ns.cloudflare.com
mira.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 mx a ip4:107.130.8.237 a:mail.straubinc.com include:spf.mtaroutes.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._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
  • ns74tfjhpj9scufito98mtbddl
  • SPFv=spf1 mx a ip4:107.130.8.237 a:mail.straubinc.com include:spf.mtaroutes.com include:spf.protection.outlook.com ~all
  • MS=70D262C1C1E4B26697BF40969FA77AFB720C41BC
  • fvp4da2ufvqnmashbte5d68orc
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