mail.twu.edu

Valid Email Server
Domain Lookup › mail.twu.edu

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
mail.twu.edu
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-26 19:11:53 UTC · ↺ Refresh

MX Hostnames

  • mx0a-0000ba01.pphosted.com
  • mx0b-0000ba01.pphosted.com

MX Priorities

  • mx0a-0000ba01.pphosted.com: 10
  • mx0b-0000ba01.pphosted.com: 10

A / AAAA Records

  • 198.178.139.204 (no PTR)

Mail Server IPs

  • 148.163.156.127 ↩ mx0a-0000ba01.pphosted.com
  • 148.163.158.124 ↩ mx0b-0000ba01.pphosted.com

SOA Record

Raw SOA dns-m-ext.twu.edu dnsadmins.twu.edu 2025110401 3600 3600 604800 3600
Primary NS (mname)
dns-m-ext.twu.edu
Admin Email (rname)
dnsadmins@twu.edu
Serial
2025110401
Refresh
3600s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns2.twu.edu
ns1.twu.edu
netakdnsu.twu.edu
nsx_1.twu.edu
10.4.224.35
nsx_2.twu.edu

SPF Record

✓ Soft Fail (~all)
v=spf1 a mx include:mh.blackboard.com ip4:66.151.109.0/24 ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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
  • SPFv=spf1 a mx include:mh.blackboard.com ip4:66.151.109.0/24 ~all
  • MS=16A7EF0ABF4FC6A13311865F9DA4706976BA31C7
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