Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tdallassmith.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 06:07:22 UTC · ↺ Refresh
MX Hostnames
- tdallassmith-com.mail.protection.outlook.com
- tdallassmith-com.mail.protection.outlook.com
MX Priorities
- tdallassmith-com.mail.protection.outlook.com: 20
- tdallassmith-com.mail.protection.outlook.com: 0
A / AAAA Records
- 151.101.2.159 (no PTR)
Mail Server IPs
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.netfirms.com dnsadmin.netfirms.com 2011071615 10800 3600 604800 3600
Primary NS (mname)
ns1.netfirms.com
Admin Email (rname)
dnsadmin@netfirms.com
Serial
2011071615
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns2.netfirms.com
ns1.netfirms.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- MS=ms93375454
- scph0617._domainkey.tdallassmith.com
- SPFv=spf1 include:spf.protection.outlook.com -all
- DKIMv=DKIM1; k=rsa; h=sha256; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDNvEO34wY2uoCuGLJarBmqXZ6mMz9F4TE6AytHiEV4HldINkBFNWOcRJGyIi1MgTviQa6wyMvskXL95hZA+WmZcfh0roNexHl7r3hwLxhMyCMcZzhjCMQM70ThPD2jjZp1fxA45L7qdnVp+U4L6Ea4OLqdFd6Fhx8qKpB1T3ZkYwIDAQAB
- SPFv=spf1 ip4:66.96.128.0/18 include:websitewelcome.com ?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
See demo & docs
Deep verification
Full email verification for tdallassmith.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits