Domain Overview
DNS: ✓ 2d ago
Checker: ✓ 2d ago
tsihvac.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-19 06:29:30 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 66.173.50.43 ↩ h66-173-50-43.mdsnwi.dedicated.static.tds.net
Mail Server IPs
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns1-36.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-36.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns2-36.azure-dns.net
ns3-36.azure-dns.org
ns4-36.azure-dns.info
ns1-36.azure-dns.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:us._netblocks.mimecast.com include:spf-us.emailsignatures365.com include:spf.safewebservices.com include:spf.protection.outlook.com include:spf.zohomail360.com include:servers.mcsv.net ip4:71.13.13.162 ip4:74.87.126.46 ip4:24.155.94.196 ip4:66.173.50.36 ip4:47.225.198.62 ip4:12.52.155.145 ip4:12.87.94.122 ip4:74.87.126.46 ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; pct=20;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 20% of failing messages only
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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
9 records- apple-domain-verification=psROROX12FmHA41s
- 6IjN96FzD4S3AarWcjfX7V4YdzC18XB7CDr2W1pFNTPUEK9qMn3WgIN5pIwXWtE2mF/mUwzidhdZywHwF11/Cg==
- infor-cloudsuite-domain-verification=WFET45MB9EWZAX7FEPJ2R3PLSKRJ3N8BMG4PX2LRWEF7V6USLLY6J3THA4HRS9UE
- _ksge3kv4cqehfl9goiu9zj8bo05vskc
- google-site-verification=Jf6-BmbTbKGS8akML3wYFdSGowpAeq_-TI4Zc4umlTA
- openai-domain-verification=dv-QLWq12oc5YE18P20Gd7eCY7e
- 0ed1fe018a1bf01ce9023a470baafc828ab6c56d57
- MS=ms46070509
- SPFv=spf1 include:us._netblocks.mimecast.com include:spf-us.emailsignatures365.com include:spf.safewebservices.com include:spf.protection.outlook.com include:spf.zohomail360.com include:servers.mcsv.net ip4:71.13.13.162 ip4:74.87.126.46 ip4:24.155.94.196 ip4:66.173.50.36 ip4:47.225.198.62 ip4:12.52.155.145 ip4:12.87.94.122 ip4:74.87.126.46 ~all
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