Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sentex.net
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 10:03:33 UTC · ↺ Refresh
MX Hostnames
- smtp.sentex.ca
- offsite.sentex.ca
MX Priorities
- smtp.sentex.ca: 10
- offsite.sentex.ca: 50
A / AAAA Records
- 64.7.148.55
Mail Server IPs
- 199.212.134.4 ↩ smtp1.sentex.ca
- 64.7.153.10 ↩ smtp1c.sentex.ca
- 64.7.153.30 ↩ smtp2c.sentex.ca
- 67.43.128.2 ↩ smtp1lo.sentex.ca
- 67.43.128.3 ↩ smtp2lo.sentex.ca
- 206.51.23.254 ↩ smtp2-lo0b.sentex.ca
- 206.51.23.253 ↩ smtp1-lo0b.sentex.ca
- 199.212.134.9 ↩ smtp2.sentex.ca
- 2607:f3e0::9 ↩ smtp2-6.sentex.ca
- 2607:f3e0::4 ↩ smtp1-6.sentex.ca
- 67.43.129.252
- 2607:f3e0::80:0:0:0:290
SOA Record
Raw SOA
ns.sentex.ca hostmaster.sentex.net 2026012700 7200 3500 604800 86400
Primary NS (mname)
ns.sentex.ca
Admin Email (rname)
hostmaster@sentex.net
Serial
2026012700
Refresh
7200s
Retry
3500s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns2.sentex.ca
ns.sentex.ca
ns2.sentex.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:98.159.240.0/20 ip4:64.7.128.0/19 ip4:67.43.128.0/20 ip4:199.212.134.0/23 ip4:205.211.164.0/23 ip4:206.51.23.0/24 ip4:206.51.24.0/24 ip4:206.51.25.0/24 ip4:206.130.91.0/24 ip6:2607:f3e0::/32 a mx ptr include:sentex.ca ~all
📊 DNS lookups: 4/10
~ 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
1 record- SPFv=spf1 ip4:98.159.240.0/20 ip4:64.7.128.0/19 ip4:67.43.128.0/20 ip4:199.212.134.0/23 ip4:205.211.164.0/23 ip4:206.51.23.0/24 ip4:206.51.24.0/24 ip4:206.51.25.0/24 ip4:206.130.91.0/24 ip6:2607:f3e0::/32 a mx ptr include:sentex.ca ~all
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