Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
seihealthcare.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 20:54:04 UTC · ↺ Refresh
MX Hostnames
- mail.seihealthcare.com
- mail.seihealthcare.com
MX Priorities
- mail.seihealthcare.com: 20
- mail.seihealthcare.com: 10
A / AAAA Records
- 23.185.0.4 (no PTR)
- 2620:12a:8001::4 (no PTR)
- 2620:12a:8000::4 (no PTR)
Mail Server IPs
- 18.218.239.99 ↩ whm01.oneelevendigital.com
SOA Record
Raw SOA
ns41.domaincontrol.com dns.jomax.net 2024052700 28800 7200 604800 600
Primary NS (mname)
ns41.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2024052700
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns42.domaincontrol.com
ns41.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a ip4:199.192.13.10/32 ip4:199.192.13.11/32 a:mail.icglink.com a:whm01.telx.atl.icglink.net include:oneelevendigital.com include:icglink.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 237 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- D1369485
- SPFv=spf1 mx a ip4:199.192.13.10/32 ip4:199.192.13.11/32 a:mail.icglink.com a:whm01.telx.atl.icglink.net include:oneelevendigital.com include:icglink.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 seihealthcare.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits