optecit.com.br

Valid Email Server
Domain Lookup › optecit.com.br

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
optecit.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-29 06:32:48 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • optecit-com-br.mail.protection.outlook.com: 0

A / AAAA Records

  • 162.241.63.49 ↩ 162-241-63-49.unifiedlayer.com

Mail Server IPs

  • 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
  • 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
  • 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
  • 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
  • 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
  • 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com

SOA Record

Raw SOA sima.ns.cloudflare.com dns.cloudflare.com 2399348076 10000 2400 604800 1800
Primary NS (mname)
sima.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399348076
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

sima.ns.cloudflare.com
wesley.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:servers.mcsv.net include:_spf.locaweb.com.br include:spf.protection.outlook.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
default._domainkey
k1._domainkey
✓ Public key: 237 chars (valid)
✓ DKIM properly configured for selector: default

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • 27/08/2025
  • MS=ms19525048
  • SPFv=spf1 include:servers.mcsv.net include:_spf.locaweb.com.br include:spf.protection.outlook.com ~all
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