Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jeffersonwells.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 20:48:51 UTC · ↺ Refresh
MX Hostnames
- jeffersonwells-com.mail.protection.outlook.com
MX Priorities
- jeffersonwells-com.mail.protection.outlook.com: 5
A / AAAA Records
- 104.18.42.118 (no PTR)
- 172.64.145.138 (no PTR)
- 2606:4700:440c::ac40:918a
- 2a06:98c1:3107::6812:2a76
Mail Server IPs
- 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
dara.ns.cloudflare.com dns.cloudflare.com 2398895007 10000 2400 604800 1800
Primary NS (mname)
dara.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398895007
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
rick.ns.cloudflare.com
dara.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:sendgrid.net include:_spf.bullhornmail.com include:5087845.spf04.hubspotemail.net ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ 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
10 records- DKIMv=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCK0fpdJsfFWmCx0Nk+31yV/w2xMyl2tms8JLhod0Jb+cKI6t4uiUeqXwip27LMnuC+y8ySYfcsJOhe4cVGGNxE15wXyx1nvkBbhkth6G/oheGNEZ6b3eFYpCBCP4hFRUoPMQzi1iDna+Urh65E+YhZhnQgdjSajf9txBSNR8Gu6wIDAQAB
- SPFv=spf1 include:spf.protection.outlook.com include:sendgrid.net include:_spf.bullhornmail.com include:5087845.spf04.hubspotemail.net ~all
- MS=ms39495859
- MS=ms53585374
- MS=ms73784957
- apple-domain-verification=5g0cbcjsrbUTYK01
- cisco-ci-domain-verification=67fd3178a882b19ae60d443a15e97ed0c6d73fda5e1a342255796563d28247b5
- google-site-verification=6X4OzAB8m62w7jbMhUoND68G8zrt0u1aO4gfe6ZQ670
- google-site-verification=oEg61n0UK6gcYTdgkiT5YnTNn_a8Tz3o63xgAYBAgTU
- google-site-verification=zuItCnDbELF_VyKP36xRlfok49uVuUfO-i3mqn6nmlE
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 jeffersonwells.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits