Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
addison-hvac.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 03:32:33 UTC · ↺ Refresh
MX Hostnames
- addisonhvac-com01i.mail.protection.outlook.com
MX Priorities
- addisonhvac-com01i.mail.protection.outlook.com: 0
A / AAAA Records
- 167.172.226.30 ↩ 1182231.cloudwaysapps.com
Mail Server IPs
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1034.awsdns-01.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1034.awsdns-01.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1034.awsdns-01.org
ns-133.awsdns-16.com
ns-1562.awsdns-03.co.uk
ns-950.awsdns-54.net
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:206.192.100.36 include:spf.protection.outlook.com include:sendgrid.net ip4:3.214.204.181 include:spf.us.exclaimer.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 192 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
6 records- MS=ms83052446
- knowbe4-site-verification=95e1fc93d1fc7ad7b709dfe1d0fda662
- poe4v0godreevirurfvr5v9gso
- SPFv=spf1 mx ip4:206.192.100.36 include:spf.protection.outlook.com include:sendgrid.net ip4:3.214.204.181 include:spf.us.exclaimer.net -all
- 21d3vcd0n63s4uup62vqgmusi4
- MS=ms10383508
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