Domain Overview
DNS: ✓ 1mo ago
Checker: ✓ 1mo ago
zatecsa.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-09-16 01:32:16 UTC · ↺ Refresh
MX Hostnames
- mail.zatecsa.com
MX Priorities
- mail.zatecsa.com: 0
A / AAAA Records
- 88.148.3.155 ↩ server.lazarola.com
Mail Server IPs
- 78.136.73.138 ↩ iws.zierzotelecom.es
SOA Record
Raw SOA
ns2.zatecsa.com hosting.visualcom.es 2026060301 10800 3600 1209600 10800
Primary NS (mname)
ns2.zatecsa.com
Admin Email (rname)
hosting@visualcom.es
Serial
2026060301
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
10800s
Nameservers (NS)
ns.zatecsa.com
ns2.zatecsa.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:78.136.73.138 +a +mx +a:web7.visualcom.es include:spf.protection.outlook.com include:_spf.zierzotelecom.es -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; adkim=s; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
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
3 records- MS=ms79850806
- MS=D645345D49C9531BCF995ED77122E75A2916B50F
- SPFv=spf1 ip4:78.136.73.138 +a +mx +a:web7.visualcom.es include:spf.protection.outlook.com include:_spf.zierzotelecom.es -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 · Customize →
See demo & docs
Deep verification
Full email verification for zatecsa.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits