Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mazza-hvac.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 13:03:34 UTC · ↺ Refresh
MX Hostnames
- mazzahvac-com01c.mail.protection.outlook.com
MX Priorities
- mazzahvac-com01c.mail.protection.outlook.com: 0
A / AAAA Records
- 45.33.112.150 ↩ li1049-150.members.linode.com
Mail Server IPs
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
- 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns43.worldnic.com namehost.worldnic.com 125100316 10800 3600 604800 3600
Primary NS (mname)
ns43.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125100316
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns44.worldnic.com
ns43.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:150.221.33.130 include:spf.protection.outlook.com include:spf.shield.security -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- SPFv=spf1 ip4:150.221.33.130 include:spf.protection.outlook.com include:spf.shield.security -all
- qbhvpju3lq40ee9aoemqsoff5p
- google-site-verification=VmN8s9W7RPBoDA-yLe1xDCPFmwusruN_Ex7r_WkC7Hg
- 9oukt34a2hioii4uu3icgtl8mm
- m1dk168mss1srdkbidnrp8d6hb
- apple-domain-verification=Z0DI67uDjJMD9v6x
- irdsgs0jqhle0cjlbfib4eaf57
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