Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
htb.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 21:58:57 UTC · ↺ Refresh
MX Hostnames
- htb-com.mail.protection.outlook.com
MX Priorities
- htb-com.mail.protection.outlook.com: 1
A / AAAA Records
- 172.66.138.40 (no PTR)
- 172.66.133.224 (no PTR)
- 2606:4700:10::ac42:85e0
- 2606:4700:10::ac42:8a28
Mail Server IPs
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
albert.ns.cloudflare.com dns.cloudflare.com 2399355313 10000 2400 604800 1800
Primary NS (mname)
albert.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399355313
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
albert.ns.cloudflare.com
kate.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.atlassian.net include:spf.protection.outlook.com ip4:12.182.14.128/25 ip4:12.186.124.128/27 ip4:63.71.8.0/21 ip4:12.145.177.237 ip4:12.145.177.240 ip4:166.73.19.150 ip4:66.128.55.163 ip4:161.58.213.13 ip4:140.174.79.145 ip4:208.83.143.203 ip4:159.183.0.239 include:4976085.spf07.hubspotemail.net include:spf.cashedge.com include:spf2.htb.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; sp=none; rua=mailto:[email protected]!15m; ruf=mailto:[email protected]!15m; rf=afrf; pct=100; ri=86400
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]!15m
↳ Subdomain policy: none
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._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
17 records- apple-domain-verification=EKUcK9ZO5VvIpP-gX6XGl46YyEgeVx7yq2uEL57ctZ0
- atlassian-sending-domain-verification=c6c3d79e-fb83-4809-90b7-6ac1d210b6a9
- BHV4/YVE22JlEkxprzUwPnq538yeLyvhdk5rNCUfbNaARoRxsn/s9b9R5UYiY1vtubVtGhp0GaYy66ZuRcIyPw==
- smartsheet-site-validation=4wspiKP3YVDVbTPSX2zi5qFLawD4cQBa
- _nshm2siwokgjrmd4dc9xolnwvrd8rhg
- facebook-domain-verification=l5kxqv8l4dzoqvopx6v75vtg3vuv7c
- docusign=4281bfa0-7690-44a4-addc-4bebb7c1f144
- _cx5ay7j62ts4ww3e35v4vu3903xqjri
- _2cm5f2o50p4sj6ale4uppjcyqzs7sjs
- atlassian-domain-verification=PqJDkb05DhUmDxbnG/y9K525ufhTgkhBErwC7/Nb7rDPAQLqJIyMXhc3Uh1HEUIE
- SPFv=spf1 include:_spf.atlassian.net include:spf.protection.outlook.com ip4:12.182.14.128/25 ip4:12.186.124.128/27 ip4:63.71.8.0/21 ip4:12.145.177.237 ip4:12.145.177.240 ip4:166.73.19.150 ip4:66.128.55.163 ip4:161.58.213.13 ip4:140.174.79.145 ip4:208.83.143.203 ip4:159.183.0.239 include:4976085.spf07.hubspotemail.net include:spf.cashedge.com include:spf2.htb.com -all
- _ii86vhztun36nhnpi232umfndee7tfb
- google-site-verification=FX8SXsAcCRtRVt-Q9YqPtPwHxFWYup2PmwBttyhF6KM
- ca3-3b5cfa1d509443cbac63cdede5d77ae5
- logmein-verification-code=fc3FKku0SKUrJMnstq6uyU9yv
- cisco-ci-domain-verification=1e443c55f06df1c3e1c11fda5e2a730d260f613b1eead5073f9d711e0dc9b733
- bwwgjx3bjcm2sn0sv18qz6z1pdzlhcmd
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