Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
curb.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 22:04:58 UTC · ↺ Refresh
MX Hostnames
- curb-com.mail.protection.outlook.com
MX Priorities
- curb-com.mail.protection.outlook.com: 10
A / AAAA Records
- 104.21.31.205 (no PTR)
- 172.67.179.243 (no PTR)
- 2606:4700:3036::6815:1fcd
- 2606:4700:3036::ac43:b3f3
Mail Server IPs
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
sergi.ns.cloudflare.com dns.cloudflare.com 2399822254 10000 2400 604800 1800
Primary NS (mname)
sergi.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399822254
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
thea.ns.cloudflare.com
sergi.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:40.135.68.126 ip4:96.85.149.3 ip4:12.188.246.218 ip4:162.249.104.84 include:e2ma.net include:spf.mandrillapp.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 3/10
~ 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: 392 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
8 records- MS=60BDA7A235BC471F928C941ABCE6AA3C2D0A9851
- apple-domain-verification=TevgFG4ZRf3ySCyx
- mOKj0H8wYD2kCMm+bCIrib+7pGOUfXYbx84Ls3CSt3QZ3QSzJV3qE8zWzO7v2akojCI/x/sIRp8DPYCu6dFWFg==
- openai-domain-verification=dv-jAnu75gmPq1qJ6E8rQ9m9JZ0
- SPFv=spf1 ip4:40.135.68.126 ip4:96.85.149.3 ip4:12.188.246.218 ip4:162.249.104.84 include:e2ma.net include:spf.mandrillapp.com include:spf.protection.outlook.com ~all
- B8R0DZOe+WwhV4wkhnIWgE3oCqL5H7xf+9Ubm+BcomRfoicUA/DReRhnsp8Jq+cGUchCw/f49BGE4hsgVzakUg==
- MS=0CAF2814B7F9CC0B0067F327E9DA5662A1F88F5F
- MS=517333C1B96A318498D5B248735621087B50091F
Full email verification for curb.com
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