Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jeffersonfrank.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 02:09:57 UTC · ↺ Refresh
MX Hostnames
- jeffersonfrank-com.mail.protection.outlook.com
MX Priorities
- jeffersonfrank-com.mail.protection.outlook.com: 0
A / AAAA Records
- 3.10.42.118 ↩ ec2-3-10-42-118.eu-west-2.compute.amazonaws.com
Mail Server IPs
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
ns59.domaincontrol.com dns.jomax.net 2026031801 28800 7200 604800 600
Primary NS (mname)
ns59.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026031801
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns59.domaincontrol.com
ns60.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 exists:%{i}._spf.mta.salesforce.com include:spf.protection.outlook.com include:spf.mandrillapp.com include:sendgrid.net include:amazonses.com include:145857210.spf07.hubspotemail.net ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
8 records- SPFv=spf1 exists:%{i}._spf.mta.salesforce.com include:spf.protection.outlook.com include:spf.mandrillapp.com include:sendgrid.net include:amazonses.com include:145857210.spf07.hubspotemail.net ~all
- docusign=c03f9b36-40a4-4fec-a8ef-c333dd4529fb
- 53a341f0a6fa4de39dbf58eb0d5c6d11
- MS=ms72237932
- bw=GtTNYJmU8xl13LygAsv5yE2bUzvl4o5qgR45Rh9FQJ3l
- 0ed1fe018ac03f5bf0efe042b291e29db284272685
- google-site-verification=CEliS1txQWyyt1wWy6kf5oZIsjP9nV6n8tqwf_jFDXU
- pardot661413=7efd938c26034d4b313c62997b11644c8f2b509a6721fef2d69397b405e8e27d
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
See demo & docs
Deep verification
Full email verification for jeffersonfrank.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits