Domain Overview
DNS: ✓ 2d ago
Checker: ✓ 2d ago
1stchoiceheating.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-19 07:27:24 UTC · ↺ Refresh
MX Hostnames
- 1stchoiceheating-com.mail.protection.outlook.com
MX Priorities
- 1stchoiceheating-com.mail.protection.outlook.com: 10
A / AAAA Records
- 70.39.233.117 ↩ secure.caputodesign.com
Mail Server IPs
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
SOA Record
Raw SOA
ns73.worldnic.com namehost.worldnic.com 126032312 10800 3600 604800 3600
Primary NS (mname)
ns73.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126032312
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns74.worldnic.com
ns73.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:74.62.86.46 include:spf.protection.outlook.com include:secureserver.net include:mailgun.org include:spf-us.emailsignatures365.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
✓ 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
6 records- google-site-verification=Y5MT0I3BZxqA8QhbvY7yrvNkQY98UH1m2oW9oOsfKVY
- apple-domain-verification=By17UexVVaI9N4WY
- MS=ms82913091
- apple-domain-verification=7jPHDnvPje3hqx6M
- SPFv=spf1 ip4:74.62.86.46 include:spf.protection.outlook.com include:secureserver.net include:mailgun.org include:spf-us.emailsignatures365.com -all
- google-site-verification=AVmYfThA17-qksT0PU-jHkkrNpZ1KPIcSJOFU7kc5CU
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