Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
hks11.harvard.edu
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-27 15:35:11 UTC · ↺ Refresh
MX Hostnames
- a177026.mx.mailhop.org
- mx1.mailhop.co
- mx1.mailhop.us
- mx1.mailhop.co.uk
MX Priorities
- mx1.mailhop.us: 20
- a177026.mx.mailhop.org: 10
- mx1.mailhop.co: 30
- mx1.mailhop.co.uk: 40
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 52.29.162.96 ↩ inbound2.eu.mailhop.org
- 54.148.229.97 ↩ inbound4a.ore.mailhop.org
- 54.148.222.11 ↩ inbound1a.ore.mailhop.org
- 54.191.214.36 ↩ inbound7.ore.mailhop.org
- 54.191.151.194 ↩ inbound5g.ore.mailhop.org
- 54.149.205.143 ↩ inbound1b.ore.mailhop.org
- 52.29.118.68 ↩ inbound2.eu.delivery3.mailhop.org
SOA Record
No SOA record found.
Nameservers (NS)
No nameservers found.
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:128.103.190.0/24 ip4:128.103.253.0/24 a:outbound1.hks.harvard.edu a:outbound2.hks.harvard.edu a:ksgmail2.harvard.edu a:netop2.ksg.harvard.edu a:ksgsmtp.harvard.edu include:amazonses.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo 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
1 record- SPFv=spf1 ip4:128.103.190.0/24 ip4:128.103.253.0/24 a:outbound1.hks.harvard.edu a:outbound2.hks.harvard.edu a:ksgmail2.harvard.edu a:netop2.ksg.harvard.edu a:ksgsmtp.harvard.edu include:amazonses.com ~all
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for hks11.harvard.edu
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits