Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
synchro.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 19:05:00 UTC · ↺ Refresh
MX Hostnames
- synchro-com-br.p20.spamhero.net
- synchro-com-br.p40.spamhero.net
- synchro-com-br.p10.spamhero.com
- synchro-com-br.p30.spamhero.net
MX Priorities
- synchro-com-br.p30.spamhero.net: 30
- synchro-com-br.p40.spamhero.net: 40
- synchro-com-br.p10.spamhero.com: 10
- synchro-com-br.p20.spamhero.net: 20
A / AAAA Records
- 170.82.173.10 (no PTR)
Mail Server IPs
- 209.41.68.144 ↩ bolt112b.mxthunder.net
- 216.172.106.28 ↩ bolt112a.mxthunder.net
SOA Record
Raw SOA
ns-1403.awsdns-47.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1403.awsdns-47.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-694.awsdns-22.net
ns-1403.awsdns-47.org
ns-1939.awsdns-50.co.uk
ns-58.awsdns-07.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:168.138.226.49 ip4:152.67.51.106 ip4:152.70.210.82 ip4:168.138.154.167 ip4:168.75.84.180
📊 DNS lookups: 0/10
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
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- include:_spf.rdstation.com.br include:sendgrid.net include:amazonses.com include:spf.mta.synchro.com.br include:spf.sre-ads-smtp-producao.synchro.com.br include:spf.ads-smtp-producao.synchro.com.br ~all
- SPFv=spf1 ip4:168.138.226.49 ip4:152.67.51.106 ip4:152.70.210.82 ip4:168.138.154.167 ip4:168.75.84.180
Full email verification for synchro.com.br
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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