topa.com

Valid Email Server
Domain Lookup › topa.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
topa.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-26 22:32:48 UTC · ↺ Refresh

MX Hostnames

  • topa-com.mail.protection.outlook.com

MX Priorities

  • topa-com.mail.protection.outlook.com: 0

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
  • 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
  • 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
  • 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com

SOA Record

Raw SOA ns-1982.awsdns-55.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1982.awsdns-55.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1172.awsdns-18.org
ns-1982.awsdns-55.co.uk
ns-25.awsdns-03.com
ns-830.awsdns-39.net

SPF Record

✓ Strict (-all)
v=spf1 a include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:asp-spf1.yardi.com include:spf.constantcontact.com include:_spf.ultipro.com include:_spf.salesforce.com ip4:38.93.34.224/28 -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

3 records
  • zoho-verification=zb59191794.zmverify.zoho.com
  • atlassian-domain-verification=a0YSY7zQqHSIeMhXlf80Q07ujz6rC2cHkQ8kxZp15fsevKQ6I6zXrwL1yn2ibRlT
  • SPFv=spf1 a include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:asp-spf1.yardi.com include:spf.constantcontact.com include:_spf.ultipro.com include:_spf.salesforce.com ip4:38.93.34.224/28 -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 topa.com

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits