Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jhsph.edu
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 14:55:53 UTC · ↺ Refresh
MX Hostnames
- smtp.johnshopkins.edu
MX Priorities
- smtp.johnshopkins.edu: 10
A / AAAA Records
- 128.220.193.2 (no PTR)
Mail Server IPs
- 162.129.199.4 (no PTR)
- 128.220.38.15 ↩ smtp.johnshopkins.edu
SOA Record
Raw SOA
ens1.jhu.edu hostmaster.jhu.edu 2023103824 1200 3600 1209600 3600
Primary NS (mname)
ens1.jhu.edu
Admin Email (rname)
hostmaster@jhu.edu
Serial
2023103824
Refresh
1200s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ens1.jhmi.edu
ens1.jhu.edu
SPF Record
✓ Soft Fail (~all)
v=spf1 include:servers.mcsv.net ?all
📊 DNS lookups: 1/10
? Neutral (?all) — no enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms69723760
- SPFv=spf1 include:servers.mcsv.net ?all
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