Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sbl-site.org
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 01:49:04 UTC · ↺ Refresh
MX Hostnames
- east.smtp.mx.exch032.serverdata.net
- west.smtp.mx.exch032.serverdata.net
MX Priorities
- east.smtp.mx.exch032.serverdata.net: 10
- west.smtp.mx.exch032.serverdata.net: 15
A / AAAA Records
- 104.26.4.222 (no PTR)
- 172.67.74.234 (no PTR)
- 104.26.5.222 (no PTR)
- 2606:4700:20::681a:4de (no PTR)
- 2606:4700:20::681a:5de (no PTR)
- 2606:4700:20::ac43:4aea (no PTR)
Mail Server IPs
- 64.78.25.100 ↩ east.smtp.mx.exch032.serverdata.net
- 199.193.206.98 ↩ west.smtp.mx.exch032.serverdata.net
SOA Record
Raw SOA
kehlani.ns.cloudflare.com dns.cloudflare.com 2399367458 10000 2400 604800 1800
Primary NS (mname)
kehlani.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399367458
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
zeus.ns.cloudflare.com
kehlani.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx include:spf.intermedia.net include:spf.aventri.com include:sendgrid.net include:spf.constantcontact.com include:mandrillapp.com ip4:167.89.91.83/32 ~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
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- ptm8flpcgru390o4at6t0r55c3
- SPFv=spf1 mx include:spf.intermedia.net include:spf.aventri.com include:sendgrid.net include:spf.constantcontact.com include:mandrillapp.com ip4:167.89.91.83/32 ~all
- MS=ms86167039
- mandrill_verify.NaOIcjpKhHI5LsefD3l7Ag
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 sbl-site.org
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits