modulusone.com

Valid Email Server
Domain Lookup › modulusone.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
modulusone.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-27 02:00:33 UTC · ↺ Refresh

MX Hostnames

  • mx.b.locaweb.com.br
  • mx.core.locaweb.com.br
  • mx.jk.locaweb.com.br
  • mx.a.locaweb.com.br

MX Priorities

  • mx.a.locaweb.com.br: 20
  • mx.jk.locaweb.com.br: 20
  • mx.b.locaweb.com.br: 10
  • mx.core.locaweb.com.br: 10

A / AAAA Records

  • 54.217.91.232 ↩ ec2-54-217-91-232.eu-west-1.compute.amazonaws.com

Mail Server IPs

  • 186.202.4.42 ↩ mx.a.locaweb.com.br
  • 200.234.204.130 ↩ mx.jk.locaweb.com.br
  • 177.153.23.242 ↩ mx.b.locaweb.com.br
  • 177.153.23.241 ↩ mx.core.locaweb.com.br

SOA Record

Raw SOA ns-1096.awsdns-09.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1096.awsdns-09.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1096.awsdns-09.org
ns-1683.awsdns-18.co.uk
ns-338.awsdns-42.com
ns-804.awsdns-36.net

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
✓ DKIM properly configured for selector: google

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

All TXT Records

2 records
  • amazonses:rhWgAUNG7zN2CyTImKer1cc19oAD+bKgwzxO4DPcsmA=
  • v=spfl ip4:177.47.1.122 ~all
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