Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
heatmasters.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 14:17:52 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 141.193.213.11 (no PTR)
- 141.193.213.10 (no PTR)
Mail Server IPs
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
gordon.ns.cloudflare.com dns.cloudflare.com 2399003289 10000 2400 604800 1800
Primary NS (mname)
gordon.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399003289
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
kiki.ns.cloudflare.com
gordon.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:50.217.98.18 ip4:34.110.180.34 ip4:34.111.99.212 ip4:209.43.78.197 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:secureserver.net include:sendgrid.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- 1ggtkl1c3bs5rgtsiku31b3q8s
- 51qpq26ut87tielps0m5ki45gv
- MS=ms90386179
- apple-domain-verification=d2NlpUyx5BirRw0I
- facebook-domain-verification=oahhwlt3b0ezkpn1t2p490fq8ixoz7
- SPFv=spf1 ip4:50.217.98.18 ip4:34.110.180.34 ip4:34.111.99.212 ip4:209.43.78.197 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:secureserver.net include:sendgrid.net -all
- 0ed1fe018a7e7395b593634e019eae9c8610190f62
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