alfa.com.br

Valid Email Server
Domain Lookup › alfa.com.br

Domain Overview

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

Checked via [email protected] · 2026-03-21 02:01:38 UTC · ↺ Refresh

MX Hostnames

  • alfa-com-br.mail.protection.outlook.com

MX Priorities

  • alfa-com-br.mail.protection.outlook.com: 10

A / AAAA Records

  • 23.196.3.173 ↩ a23-196-3-173.deploy.static.akamaitechnologies.com
  • 23.196.3.209 ↩ a23-196-3-209.deploy.static.akamaitechnologies.com
  • 2600:141b:1c00:32::17d1:482b
  • 2600:141b:1c00:32::17d1:4810

Mail Server IPs

  • 52.101.200.0 ↩ mail-roap284cu02600.inbound.protection.outlook.com
  • 52.101.198.0 ↩ mail-cp5p284cu01800.inbound.protection.outlook.com
  • 52.101.198.38 ↩ mail-cp3p284cu00706.inbound.protection.outlook.com
  • 52.101.198.1 ↩ mail-cp4p284cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:c94a:: ↩ mail-cp5p284cu01800.inbound.protection.outlook.com
  • 2a01:111:f403:c94a::1 ↩ mail-cp4p284cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:c94a::2 ↩ mail-cp3p284cu00702.inbound.protection.outlook.com
  • 2a01:111:f403:c94c:: ↩ mail-roap284cu02600.inbound.protection.outlook.com

SOA Record

Raw SOA a1-51.akam.net hostmaster.alfa.com.br 2025071708 3600 600 604800 300
Primary NS (mname)
a1-51.akam.net
Admin Email (rname)
hostmaster@alfa.com.br
Serial
2025071708
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

a14-65.akam.net
a10-64.akam.net
a26-66.akam.net
a1-51.akam.net
a9-64.akam.net
a3-67.akam.net

SPF Record

✓ Strict (-all)
v=spf1 ip4:20.197.211.39 ip4:20.197.212.213 ip4:189.38.112.0/20 include:spf.protection.outlook.com mx -all
📊 DNS lookups: 2/10
✓ 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

9 records
  • docusign=5a7f31f5-a2d3-4bd0-b028-9ac00c3b5ff4
  • google-site-verification=ULMubIGFE6Yy9T31jm4HTdJGL-Q627BcE-uZ-q_a9g0
  • docusign=96a7a1ab-7af5-4fe6-b7e7-ed67c8cd6a10
  • n9/DAT15IPCTRZ0Ah7U8KU/W1R1RbawREB6IgLEM4GCX7D3lclxYw9iZ+rgnYrGnmeop3qTXbzL0e85EBteT9Q==
  • MS=ms81321270
  • MS=ms68715849
  • SPFv=spf1 ip4:20.197.211.39 ip4:20.197.212.213 ip4:189.38.112.0/20 include:spf.protection.outlook.com mx -all
  • apple-domain-verification=wARoc56pTBttrUB8
  • MS=A835DAE5535C35AD08BBBB3F9AA54036D6662948
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 alfa.com.br

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

Get 1,000 Free Credits