Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
casbus.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 07:37:42 UTC · ↺ Refresh
MX Hostnames
- casbus-com.mail.protection.outlook.com
MX Priorities
- casbus-com.mail.protection.outlook.com: 0
A / AAAA Records
- 199.16.173.133 (no PTR)
- 199.16.172.32 (no PTR)
Mail Server IPs
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
- 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1107.ui-dns.biz hostmaster.1and1.com 2017071358 28800 7200 604800 300
Primary NS (mname)
ns1107.ui-dns.biz
Admin Email (rname)
hostmaster@1and1.com
Serial
2017071358
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1107.ui-dns.com
ns1107.ui-dns.org
ns1107.ui-dns.de
ns1107.ui-dns.biz
SPF Record
✓ Soft Fail (~all)
v=spf1 include:infusionmail.com include:mailgun.org include:_spf-us.ionos.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 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
3 records- google-site-verification=mBrQfz--6_Pkemv2B3pTj6lHay1bUZCJ1q3KrkXTyeQ
- SPFv=spf1 include:infusionmail.com include:mailgun.org include:_spf-us.ionos.com include:spf.protection.outlook.com ~all
- MS=C936FBDCE5A4D920FA746B90653E80E59FB96AA5
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