towbook.net

Valid Email Server
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
towbook.net
Yes
✓ Yes
SendGrid
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-06-03 07:38:58 UTC · ↺ Refresh

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MX Hostnames

  • mx2.sendgrid.net

MX Priorities

  • mx2.sendgrid.net: 10

A / AAAA Records

  • 50.97.112.40 ↩ 28.70.6132.ip4.static.sl-reverse.com

Mail Server IPs

  • 3.136.245.72 ↩ ec2-3-136-245-72.us-east-2.compute.amazonaws.com
  • 52.25.213.239 ↩ ec2-52-25-213-239.us-west-2.compute.amazonaws.com
  • 18.224.101.244 ↩ ec2-18-224-101-244.us-east-2.compute.amazonaws.com
  • 52.37.49.26 ↩ ec2-52-37-49-26.us-west-2.compute.amazonaws.com
  • 44.216.124.122 ↩ ec2-44-216-124-122.compute-1.amazonaws.com
  • 44.245.249.202 ↩ ec2-44-245-249-202.us-west-2.compute.amazonaws.com
  • 13.216.54.185 ↩ ec2-13-216-54-185.compute-1.amazonaws.com
  • 34.198.67.24 ↩ ec2-34-198-67-24.compute-1.amazonaws.com
  • 3.17.120.38 ↩ ec2-3-17-120-38.us-east-2.compute.amazonaws.com

SOA Record

Raw SOA pdns11.domaincontrol.com dns.jomax.net 2026030302 28800 7200 604800 600
Primary NS (mname)
pdns11.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026030302
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

pdns11.domaincontrol.com
pdns12.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:168.245.5.16 ip4:149.72.203.7 include:spf.mandrillapp.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✗ None detected

No 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

2 records
  • _globalsign-domain-verification=A5569eLBO4iCcdGDqqmBS5rFgZ_gnADqIttSNDECtu
  • SPFv=spf1 ip4:168.245.5.16 ip4:149.72.203.7 include:spf.mandrillapp.com -all
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