Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
purple.us
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 05:59:51 UTC · ↺ Refresh
MX Hostnames
- stmail1.purple.us
- stmail.purple.us
MX Priorities
- stmail1.purple.us: 10
- stmail.purple.us: 10
A / AAAA Records
- 208.17.91.118 (no PTR)
Mail Server IPs
- 54.177.253.121 ↩ stmail1.purple.us
- 54.177.79.196 ↩ stmail.purple.us
SOA Record
Raw SOA
ns1.purple.us noc.purple.us 2025093001 28800 3600 604800 21600
Primary NS (mname)
ns1.purple.us
Admin Email (rname)
noc@purple.us
Serial
2025093001
Refresh
28800s
Retry
3600s
Expire
604800s
Minimum TTL
21600s
Nameservers (NS)
ns1.purple.us
ns2.purple.us
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:174.137.37.0/24 ip4:208.17.91.0/24 include:et._spf.pardot.com include:_spf.salesforce.com ip4:54.177.79.196 ip4:54.177.253.121 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=quarantine; fo=1; adkim=r; aspf=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 3 found
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector2
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
8 records- MS=ms78085132
- Ox5Ch9kqwOGQ6aQmKyMVG30jIs/GqrvUWqP5j0oM3zURJUQjxtztDNUdXce/F4lZqZgtpx6NIggNOpanCLM9FQ==
- 8SJe4kQWzDQg9VJtCu5b8Io3kVBvYv4AF3K1EJqSMn8OYUxz87w2dH6xZxsFlP3RwORXUdHCRBWiExNbTVjf7g==
- apple-domain-verification=3U2UY3fviX7QEicl
- SPFv=spf1 include:spf.protection.outlook.com ip4:174.137.37.0/24 ip4:208.17.91.0/24 include:et._spf.pardot.com include:_spf.salesforce.com ip4:54.177.79.196 ip4:54.177.253.121 -all
- qo4W3xULiBvBOsS52KFuXJMPnik9dGOQgUfxLU7HnVxQ+V5zR7hqG7ZekQng18h6a0mtZwiDFp2cMShvfUVaqQ==
- zoom-domain-verification=ZOOM_verify_8f2ba927aa734a099c1137b0cc30310d
- atlassian-domain-verification=mtNXsetYGLmVnSroW1TBDhbPvNaePo4lacErY5NYArPl8ba/mgmpqrktqPH6xt2k
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 purple.us
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits