Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tel.inf.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 22:12:38 UTC · ↺ Refresh
MX Hostnames
- mx1.tel.inf.br
- mx3.tel.inf.br
- mx2.tel.inf.br
MX Priorities
- mx1.tel.inf.br: 5
- mx2.tel.inf.br: 10
- mx3.tel.inf.br: 15
A / AAAA Records
- 104.21.28.149 (no PTR)
- 172.67.170.225 (no PTR)
- 2606:4700:3030::ac43:aae1 (no PTR)
- 2606:4700:3033::6815:1c95 (no PTR)
Mail Server IPs
- 200.254.47.51 ↩ mx1.tel.inf.br
- 187.103.33.99 ↩ mx2.tel.inf.br
- 201.48.231.66 ↩ mx3.tel.inf.br
SOA Record
Raw SOA
keanu.ns.cloudflare.com dns.cloudflare.com 2399689290 10000 2400 604800 1800
Primary NS (mname)
keanu.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399689290
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
malavika.ns.cloudflare.com
keanu.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:200.254.47.51 ip4:187.103.33.99 ip4:201.48.231.66 ip4:18.228.229.224 ip4:52.202.93.79 ip4:54.37.127.208/28 ip4:51.83.86.200/29 include:spf-77.mailgrid.net.br include:_spf.rdstation.com.br include:sendgrid.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; pct=100; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 3 found
default._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- MS=ms31304161
- te=35766F134651B65990BFAD6F761E42C7
- SPFv=spf1 mx ip4:200.254.47.51 ip4:187.103.33.99 ip4:201.48.231.66 ip4:18.228.229.224 ip4:52.202.93.79 ip4:54.37.127.208/28 ip4:51.83.86.200/29 include:spf-77.mailgrid.net.br include:_spf.rdstation.com.br include:sendgrid.net -all
Full email verification for tel.inf.br
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