Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
isoc.net
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 17:00:54 UTC · ↺ Refresh
MX Hostnames
- filter.isoc.net
MX Priorities
- filter.isoc.net: 0
A / AAAA Records
- 104.21.85.56 (no PTR)
- 172.67.202.187 (no PTR)
- 2606:4700:3031::ac43:cabb (no PTR)
- 2606:4700:3031::6815:5538 (no PTR)
Mail Server IPs
- 209.212.246.20 ↩ mailsecure.zimcom.net
SOA Record
Raw SOA
charles.ns.cloudflare.com dns.cloudflare.com 2399543421 10000 2400 604800 1800
Primary NS (mname)
charles.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399543421
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
charles.ns.cloudflare.com
dora.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:67.227.193.163 ip4:50.28.66.243 ip4:209.212.246.20 include:smtp.zimcom.net ip4:192.190.220.216 include:spf.protection.outlook.com include:_spf.hostedemail.com include:spf.constantcontact.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
dkim._domainkey
k1._domainkey
✓ Public key: 168 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 ip4:67.227.193.163 ip4:50.28.66.243 ip4:209.212.246.20 include:smtp.zimcom.net ip4:192.190.220.216 include:spf.protection.outlook.com include:_spf.hostedemail.com include:spf.constantcontact.com -all
- _ahog23mcqtobv7qtfe6bnmwrhrak04t
- google-site-verification=qmox08rqQ0ZH_v-_sqG5zED6oJ_K5c215EmPQcev4jw
Full email verification for isoc.net
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