Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sumicity.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 01:26:30 UTC · ↺ Refresh
MX Hostnames
- mtaproxy02.argohost.net
- mtaproxy05.argohost.net
- mtaproxy06.argohost.net
- mtaproxy04.argohost.net
- mtaproxy01.argohost.net
- mtaproxy03.argohost.net
MX Priorities
- mtaproxy02.argohost.net: 5
- mtaproxy04.argohost.net: 5
- mtaproxy01.argohost.net: 5
- mtaproxy05.argohost.net: 5
- mtaproxy06.argohost.net: 5
- mtaproxy03.argohost.net: 5
A / AAAA Records
- 201.139.186.195 ↩ hlcl06.argohost.net
Mail Server IPs
- 201.139.185.131 ↩ mtaproxy02.argohost.net
- 201.139.185.133 ↩ mtaproxy04.argohost.net
- 201.139.185.130 ↩ mtaproxy01.argohost.net
- 201.139.185.134 ↩ mtaproxy05.argohost.net
- 201.139.185.135 ↩ mtaproxy06.argohost.net
SOA Record
Raw SOA
ns-cloud-b1.googledomains.com cloud-dns-hostmaster.google.com 4 21600 3600 259200 300
Primary NS (mname)
ns-cloud-b1.googledomains.com
Admin Email (rname)
cloud-dns-hostmaster@google.com
Serial
4
Refresh
21600s
Retry
3600s
Expire
259200s
Minimum TTL
300s
Nameservers (NS)
ns-cloud-b4.googledomains.com
ns-cloud-b1.googledomains.com
ns-cloud-b2.googledomains.com
ns-cloud-b3.googledomains.com
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:187.110.226.230 +ip4:187.110.226.231 +ip4:187.110.226.232 +ip4:201.139.185.128/28 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- google-site-verification=-yTDVLtOTiDs0r6-Tnl_SUthX17E6inXqMBRsfRFvb0
- google-site-verification=4CVHweEQ6fStJvFwRDXeWUuEjTxAlEVhxnaMGyJJfiM
- SPFv=spf1 +a +mx +ip4:187.110.226.230 +ip4:187.110.226.231 +ip4:187.110.226.232 +ip4:201.139.185.128/28 ~all
- facebook-domain-verification=w5idxp70dk59gzv5g9s9cd5uyaecxn
Full email verification for sumicity.com.br
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits