Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cardinalsisa.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 05:58:16 UTC · ↺ Refresh
MX Hostnames
- cardinal.in.tmes.trendmicro.com
MX Priorities
- cardinal.in.tmes.trendmicro.com: 10
A / AAAA Records
- 64.91.246.87 ↩ cloudvpsserver.prepay8gb12m.cardinalassistance.com
Mail Server IPs
- 18.208.22.80 ↩ in.tmes.trendmicro.com
- 18.208.22.79 ↩ in.tmes.trendmicro.com
- 18.208.22.77 ↩ in.tmes.trendmicro.com
- 18.208.22.78 ↩ in.tmes.trendmicro.com
SOA Record
Raw SOA
ns1.prepay8gb12m.cardinalassistance.com devnull.sourcedns.com 2026032700 3600 1800 1209600 86400
Primary NS (mname)
ns1.prepay8gb12m.cardinalassistance.com
Admin Email (rname)
devnull@sourcedns.com
Serial
2026032700
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2.prepay8gb12m.cardinalassistance.com
ns1.prepay8gb12m.cardinalassistance.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:64.91.246.87 include:spf.tmes.trendmicro.com include:spf.protection.outlook.com include:spf.hostmar.com ip4:190.111.205.38 ip4:200.123.160.145 ip4:200.5.118.50 ip4:200.68.121.177 ip4:200.125.10.186 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=none;adkim=s;aspf=s;pct=100;fo=1;rf=afrf;ri=86400;ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: none
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._domainkey
✓ Public key: 392 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
4 records- MS=ms35315008
- diefmsgh75u7v2iml3n68dr10p
- SPFv=spf1 ip4:64.91.246.87 include:spf.tmes.trendmicro.com include:spf.protection.outlook.com include:spf.hostmar.com ip4:190.111.205.38 ip4:200.123.160.145 ip4:200.5.118.50 ip4:200.68.121.177 ip4:200.125.10.186 -all
- o79hk3274cmr9hrpcq4j4vhav
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 cardinalsisa.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits