Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
lennoxintl.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 03:54:37 UTC · ↺ Refresh
MX Hostnames
- lennoxintl-com.mail.protection.outlook.com
MX Priorities
- lennoxintl-com.mail.protection.outlook.com: 5
A / AAAA Records
- 205.145.200.244 (no PTR)
Mail Server IPs
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
SOA Record
Raw SOA
rchdnslep01.lennoxintl.com noreply.lennox.com 340 900 600 86400 3600
Primary NS (mname)
rchdnslep01.lennoxintl.com
Admin Email (rname)
noreply@lennox.com
Serial
340
Refresh
900s
Retry
600s
Expire
86400s
Minimum TTL
3600s
Nameservers (NS)
rchdnslep01.lennoxintl.com
dbkdnslep01.lennoxintl.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:67.216.176.147 ip4:67.216.176.146 ip4:12.129.29.143 ip4:178.23.154.90 ip4:205.145.193.7 ip4:64.106.173.0/25 ip4:192.69.130.0/24 ip4:192.69.131.0/24 ip4:44.229.121.55 ip4:35.80.141.6 ip4:34.239.65.70 ip4:199.91.136.26 ip4:205.145.201.253 ip4:199.91.140.26 include:spf.protection.outlook.com include:spf.sabre.com include:_netblocks.icims.com include:relay.secure-24.net include:spf-0015fd02.pphosted.com include:cust-spf.exacttarget.com include:_spf.salesforce.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected];ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
16 records- 1password-site-verification=BI242EVAUFCG5IGFLTRUUIX25U
- atlassian-domain-verification=Xr4mCBCOjFswpJHMSXJ3vOY1hQThoAqSj3xQ0RY1IYLIETVvRbf4gl+Aoc04bHDV
- SPFv=spf1 ip4:67.216.176.147 ip4:67.216.176.146 ip4:12.129.29.143 ip4:178.23.154.90 ip4:205.145.193.7 ip4:64.106.173.0/25 ip4:192.69.130.0/24 ip4:192.69.131.0/24 ip4:44.229.121.55 ip4:35.80.141.6 ip4:34.239.65.70 ip4:199.91.136.26 ip4:205.145.201.253 ip4:199.91.140.26 include:spf.protection.outlook.com include:spf.sabre.com include:_netblocks.icims.com include:relay.secure-24.net include:spf-0015fd02.pphosted.com include:cust-spf.exacttarget.com include:_spf.salesforce.com -all
- MS=ms75503271
- google-site-verification=CxU8f1RlyHimEspPwTqQzS39pgDCrEi_t1FwFRB1h-8
- smartsheet-site-validation=O_rI40e0_VCp1ZWiUYjUJ5gGatzbMO8n
- infoblox-domain-mastery=b57eaf68e3a4c109862aae210b628dcb381c2c0ec09a63e004597b4afb3b4ae0a4
- MNt71/tWL/IHzCHowR2nnim3q0llXQHRlK5upDrBXju+dITEw9HykZ5x9EN5P+sBrk3HL4U/S+1nft2FYg67BA==
- intersight=3bfe511b50ce6001a656eecd44e3777ac6849b8432f4232aa1fd0d50685a740e
- 2KALx/olDjJbvdNBp3XJLYGTCt6fPnsS3CFXPUEG7HrAGZlUbuWTVqRRi+46tEMxRVx2SMmd+ziFNDXyjfwRUQ==
- ciscocidomainverification=2cf5b93f7925748d22bb74d98eb52dcfd8d04a8afb6e27727bb567211366f37b
- postman-domain-verification=57d17d25af7ab74a9f4fde7a91c29a68055da91f023c8ef69285d21452dd679dec11d1a048c820991ee0cfd656557357b46811cfbf122710919f48cac2c7f0ea
- Dynatrace-site-verification=1c215483-0444-47f4-bc58-bf6962e878bb__oj2u0d37j6iub0nfipc47rsmge
- docusign=526c2639-d8f9-45bd-a0e2-92ad4fef52ac
- 4b3B16REyniXkS0z592+xK9UXA/wdejl9b9tswHHjhnjLu4ENjjOOPRUyMsrzBZBfDY+YECf+T5M8xcJh2y6/A==
- apple-domain-verification=JhJawz402guVaYCW
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for lennoxintl.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits