Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
thekeithcorp.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 23:02:15 UTC · ↺ Refresh
MX Hostnames
- thekeithcorp-com.mail.protection.outlook.com
MX Priorities
- thekeithcorp-com.mail.protection.outlook.com: 10
A / AAAA Records
- 3.217.136.149 ↩ ec2-3-217-136-149.compute-1.amazonaws.com
Mail Server IPs
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-332.awsdns-41.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-332.awsdns-41.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-332.awsdns-41.com
ns-634.awsdns-15.net
ns-1133.awsdns-13.org
ns-1544.awsdns-01.co.uk
SPF Record
✓ Strict (-all)
v=spf1 include:spf1.thekeithcorp.com include:spf2.thekeithcorp.com include:spf3.thekeithcorp.com include:spf4.thekeithcorp.com include:spf.mandrillapp.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=none; adkim=s; aspf=s; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100; ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
5 records- SPFv=spf1 include:spf1.thekeithcorp.com include:spf2.thekeithcorp.com include:spf3.thekeithcorp.com include:spf4.thekeithcorp.com include:spf.mandrillapp.com -all
- 1907F8105D
- google-site-verification=JM5LnIPtdn94TKJx1wzQT7LNZQYd1k-1pgj2RQ4WPGA
- nitro-verification-code=LTU1MzI4MDE0MDM1NDc5Mjk3NTM=
- openai-domain-verification=dv-uuScaXu59DWWNQSTBlXulROo
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 thekeithcorp.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits