Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jsandgcpa.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 10:03:02 UTC · ↺ Refresh
MX Hostnames
- inbound30.exchangedefender.com
MX Priorities
- inbound30.exchangedefender.com: 10
A / AAAA Records
- 198.202.211.1 (no PTR)
Mail Server IPs
- 65.99.255.233 ↩ inbound.vfo.exchangedefender.com
- 65.99.255.128 ↩ xd3.exchangedefender.com
SOA Record
Raw SOA
ns39.domaincontrol.com dns.jomax.net 2026011200 28800 7200 604800 600
Primary NS (mname)
ns39.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026011200
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns40.domaincontrol.com
ns39.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:proxy.exchangedefender.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; aspf=r; adkim=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 3 found
default._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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- SPFv=spf1 include:proxy.exchangedefender.com -all
- MS=6FB6DB883C8CE725CC2461BC861865882B70B217
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 jsandgcpa.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits