Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
grupotenerife.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 04:01:22 UTC · ↺ Refresh
MX Hostnames
- mx04.hornetsecurity.com
- mx03.hornetsecurity.com
- mx01.hornetsecurity.com
- mx02.hornetsecurity.com
MX Priorities
- mx04.hornetsecurity.com: 4
- mx01.hornetsecurity.com: 1
- mx03.hornetsecurity.com: 3
- mx02.hornetsecurity.com: 2
A / AAAA Records
- 198.202.211.1 (no PTR)
Mail Server IPs
- 94.100.136.7 ↩ mx04.hornetsecurity.com
- 94.100.132.8 ↩ mx01.hornetsecurity.com
- 94.100.134.8 ↩ mx03.hornetsecurity.com
- 94.100.136.8 ↩ mx02.hornetsecurity.com
SOA Record
Raw SOA
ns1071.ui-dns.com hostmaster.1und1.com 2017060358 28800 7200 604800 600
Primary NS (mname)
ns1071.ui-dns.com
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060358
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1075.ui-dns.de
ns1071.ui-dns.com
ns1074.ui-dns.org
ns1023.ui-dns.biz
SPF Record
✓ Strict (-all)
v=spf1 include:zcsend.net include:antispameurope.com include:one.zoho.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;pct=100;adkim=r;aspf=r;rua=mailto:[email protected];ri=86400;fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._domainkey
✓ Public key: 216 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
2 records- SPFv=spf1 include:zcsend.net include:antispameurope.com include:one.zoho.com include:spf.protection.outlook.com -all
- google-site-verification=Lksxs0ML6zsTlJX7zMFQeRd_VLEaA-r8jN87mpiqvps
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 grupotenerife.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits