Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kastle.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 02:29:49 UTC · ↺ Refresh
MX Hostnames
- kastle-com.mail.protection.outlook.com
MX Priorities
- kastle-com.mail.protection.outlook.com: 5
A / AAAA Records
- 141.193.213.20 (no PTR)
- 141.193.213.21 (no PTR)
Mail Server IPs
- 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
SOA Record
Raw SOA
ns0.dnsmadeeasy.com network.kastle.com 2011013259 43200 3600 1209600 180
Primary NS (mname)
ns0.dnsmadeeasy.com
Admin Email (rname)
network@kastle.com
Serial
2011013259
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns15.dnsmadeeasy.com
ns12.dnsmadeeasy.com
ns11.dnsmadeeasy.com
ns10.dnsmadeeasy.com
ns13.dnsmadeeasy.com
ns14.dnsmadeeasy.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx include:servers.mcsv.net include:_spf.checkvideo.net include:spf.protection.outlook.com include:3851256.spf02.hubspotemail.net include:_spf.ultipro.com include:_spf.messagegears.net include:_spf.psm.knowbe4.com ~all
📊 DNS lookups: 8/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
mail._domainkey
s1._domainkey
s2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
8 records- logmein-verification-code=0FtLtPZ9QVmzcLUlubze9TONl
- atlassian-domain-verification=ZCJftSezKgage74ZAS0wHUcRUBktWWwVjWzHUK0uLy8t4x9TU8kwaU5yDA8wfKTh
- atlassian-sending-domain-verification=598f333e-aefd-4ecc-b544-e3f4b5a73a37
- MS=ms14300094
- apple-domain-verification=480vahuykb8bLxYX
- have-i-been-pwned-verification=c78faa61d73f271c64413cbf04412b58
- SPFv=spf1 mx include:servers.mcsv.net include:_spf.checkvideo.net include:spf.protection.outlook.com include:3851256.spf02.hubspotemail.net include:_spf.ultipro.com include:_spf.messagegears.net include:_spf.psm.knowbe4.com ~all
- _7s04ic6e4nfe4m2fcsy1kc2znq0wypb
Full email verification for kastle.com
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