Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
companhiadasletras.com.br
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 23:03:32 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 2
- us-smtp-inbound-1.mimecast.com: 1
A / AAAA Records
- 52.22.13.246 ↩ web01.companhiadasletras.com.br
Mail Server IPs
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ns.communiplex.net root.communiplex.net 2026020301 600 360 86400 3600
Primary NS (mname)
ns.communiplex.net
Admin Email (rname)
root@communiplex.net
Serial
2026020301
Refresh
600s
Retry
360s
Expire
86400s
Minimum TTL
3600s
Nameservers (NS)
ns.communiplex.net
ns2.communiplex.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:13.111.18.27 include:spf.protection.outlook.com include:amazonses.com include:_netblocks3.prh.com include:_netblocks.mimecast.com include:_spf.rdstation.com.br include:sendgrid.net ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
default._domainkey
s1._domainkey
s2._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
10 records- box-domain-verification=db77a8bd2b4c58c0c06fe162423a3228c6d9be760b24b66336e394f05f465c31
- 0ed1fe018a75969eed013949b5a5370a3f7e64cb0e
- sophos-domain-verification=114305e0bcc07624a0aad48cd15c1ea4880c546d119b7bab39ba4867a10c6603
- knowbe4-site-verification=d493a6f4d856e91268bd30610ebee498
- 1ec51cc93dca368deadead36b390bd22ab7a0c8d7259491e08
- openai-domain-verification=dv-BpIZkUFFbgLegecgtyK7k9zv
- SPFv=spf1 ip4:13.111.18.27 include:spf.protection.outlook.com include:amazonses.com include:_netblocks3.prh.com include:_netblocks.mimecast.com include:_spf.rdstation.com.br include:sendgrid.net ~all
- MS=ms71598459
- MS=ms87655792
- google-site-verification=-VK-c4llkrg31-kDI2SSFJxJdpXQpc4CuBHRlqh59qs
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