Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
amh.org
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 11:24:00 UTC · ↺ Refresh
MX Hostnames
- mail.jefferson.edu
MX Priorities
- mail.jefferson.edu: 5
A / AAAA Records
- 104.88.206.12
- 23.222.79.155
Mail Server IPs
- 147.140.23.43 ↩ smtpin04pb.jefferson.edu
- 147.140.23.42 ↩ smtpin03pb.jefferson.edu
- 147.140.23.35 ↩ smtpin01pa.jefferson.edu
- 147.140.23.66 ↩ res4.jefferson.edu
- 147.140.23.64 ↩ smtpin05pa.jefferson.edu
- 147.140.23.74 ↩ smtp.jefferson.edu
- 147.140.23.46 ↩ smtpin05pb.jefferson.edu
- 147.140.23.68 ↩ phishsensor03pa.jefferson.edu
- 147.140.23.69 ↩ smtpin07pb.jefferson.edu
- 147.140.23.40 ↩ smtpin03pa.jefferson.edu
- 147.140.23.77
- 147.140.23.67
- 147.140.23.51
- 147.140.23.52
SOA Record
Raw SOA
ns45.domaincontrol.com dns.jomax.net 2022120906 28800 7200 604800 600
Primary NS (mname)
ns45.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2022120906
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns46.domaincontrol.com
ns45.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 exists:%{i}._i.%{d}._d.espf.agari.com include:%{d}.30.spf-protect.agari.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; pct=100; ri=3600; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
1 record- SPFv=spf1 exists:%{i}._i.%{d}._d.espf.agari.com include:%{d}.30.spf-protect.agari.com -all
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