Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
acertonline.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 23:39:50 UTC · ↺ Refresh
MX Hostnames
- mx-ha.skymail.net.br
MX Priorities
- mx-ha.skymail.net.br: 20
A / AAAA Records
- 185.230.63.107 ↩ unalocated.63.wixsite.com
Mail Server IPs
- 168.0.133.10 ↩ mx-ha.skymail.net.br
SOA Record
Raw SOA
ns1.skymail.net.br hostmaster.acertonline.com.br 1719876728 16384 2048 1048576 2560
Primary NS (mname)
ns1.skymail.net.br
Admin Email (rname)
hostmaster@acertonline.com.br
Serial
1719876728
Refresh
16384s
Retry
2048s
Expire
1048576s
Minimum TTL
2560s
Nameservers (NS)
ns2.skymail.net.br
ns3.skymail.net.br
ns1.skymail.net.br
SPF Record
✓ Strict (-all)
v=spf1 include:spf.skymail.net.br -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
5 records- SPFv=spf1 include:spf.skymail.net.br -all
- jodaj1ulqg43m2r2dsi9tdapui
- google-site-verification=TTyX8EXi5ZQxneBUn_Lh7G5Ggp9FZRMlArxFLhYkWOA
- MS=ms60533890
- hu3kuk38i6v0pqau2gcm34hp21
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