Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
a-a.com.mx
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-28 08:06:36 UTC · ↺ Refresh
MX Hostnames
- a-a.com.mx
MX Priorities
- a-a.com.mx: 0
A / AAAA Records
- 64.20.37.43 (no PTR)
Mail Server IPs
- 64.20.37.43 (no PTR)
SOA Record
Raw SOA
dns2018a.trouble-free.net jdesentis.mac.com 2026020301 3600 7200 1209600 86400
Primary NS (mname)
dns2018a.trouble-free.net
Admin Email (rname)
jdesentis@mac.com
Serial
2026020301
Refresh
3600s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
dns2018b.trouble-free.net
dns2018a.trouble-free.net
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:64.20.37.42 include:relay.mailbaby.net +include:relay.is.cc +include:relay.mailchannels.net ~all
📊 DNS lookups: 5/10
~ 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: 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
1 record- SPFv=spf1 +a +mx +ip4:64.20.37.42 include:relay.mailbaby.net +include:relay.is.cc +include:relay.mailchannels.net ~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
See demo & docs
Deep verification
Full email verification for a-a.com.mx
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits