Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
lesterbuildings.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 16:13:20 UTC · ↺ Refresh
MX Hostnames
- lesterbuildings-com.mail.protection.outlook.com
MX Priorities
- lesterbuildings-com.mail.protection.outlook.com: 0
A / AAAA Records
- 204.246.68.123 ↩ www.lesterbuildings.com
Mail Server IPs
- 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
- 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
jakub.ns.cloudflare.com dns.cloudflare.com 2398108250 10000 2400 604800 1800
Primary NS (mname)
jakub.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398108250
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
jakub.ns.cloudflare.com
mallory.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:208.74.8.144 ip4:108.178.197.66 ip4:204.246.68.123 ip4:209.239.233.124 ip4:209.239.233.125 ip4:64.0.146.124 ip4:64.0.146.125 ip4:209.220.191.124 include:mailgun.org include:spf.protection.outlook.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
5 records- google-site-verification=I-j09WiJUeteTD1EQyHeR0sXKtPYmm2fM7w9DYt-q7A
- SPFv=spf1 ip4:208.74.8.144 ip4:108.178.197.66 ip4:204.246.68.123 ip4:209.239.233.124 ip4:209.239.233.125 ip4:64.0.146.124 ip4:64.0.146.125 ip4:209.220.191.124 include:mailgun.org include:spf.protection.outlook.com ~all
- MS=ms53238612
- duo_sso_verification=0LGP9Nw1JL6oW9TVj6iu8wTVempuReJzAk6Z57s0uQIW7tQ6249tLhWJejmPCEth
- google-site-verification=C-bsliVrrkZujz-FZzvuAgVcKSaoDXRV8L_h2k4_xvI
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