research.att.com

Valid Email Server
Domain Lookup › research.att.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
research.att.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-25 21:06:11 UTC · ↺ Refresh

MX Hostnames

  • mx0a-00191d01.pphosted.com
  • mx0b-00191d01.pphosted.com

MX Priorities

  • mx0a-00191d01.pphosted.com: 10
  • mx0b-00191d01.pphosted.com: 10

A / AAAA Records

  • 135.207.255.47 (no PTR)

Mail Server IPs

  • 67.231.149.140 ↩ mx0a-00191d01.pphosted.com
  • 67.231.157.136 ↩ mx0b-00191d01.pphosted.com

SOA Record

Raw SOA ns.research.att.com gateguy.research.att.com 2026032501 3600 1800 1209600 300
Primary NS (mname)
ns.research.att.com
Admin Email (rname)
gateguy@research.att.com
Serial
2026032501
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
300s

Nameservers (NS)

ns-bd-e1.research.att.com
ns.research.att.com
ns-bd-e2.research.att.com
ns2.attdns.com
ns3.attdns.com
ns1.attdns.com

SPF Record

✓ Strict (-all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict 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 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all
  • box-domain-verification=73b38eccd6cf3094f59070cc1471ea94d8c8a433f4e6808d990349214e4482ce
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