Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
checkbook.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 19:14:33 UTC · ↺ Refresh
MX Hostnames
- checkbook-org.mail.protection.outlook.com
MX Priorities
- checkbook-org.mail.protection.outlook.com: 1
A / AAAA Records
- 104.20.9.6 (no PTR)
Mail Server IPs
- 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
- 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.dfw.databank.com ipadmin.databank.com 2026030213 7200 3600 1209600 3600
Primary NS (mname)
ns1.dfw.databank.com
Admin Email (rname)
ipadmin@databank.com
Serial
2026030213
Refresh
7200s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns2.msp.databank.com
ns2.dfw.databank.com
ns1.dfw.databank.com
ns1.slc.databank.com
ns2.iad.databank.com
ns2.slc.databank.com
ns1.msp.databank.com
ns1.iad.databank.com
SPF Record
✓ Strict (-all)
v=spf1 mx include:39873840.spf06.hubspotemail.net include:mktomail.com include:spf.ess.barracudanetworks.com ip4:65.242.82.20 ip4:149.72.86.207 ip4:74.209.229.24 ip4:74.209.224.200 ip4:74.209.224.197 ip4:74.209.224.198 include:_spf.google.com include:spf.protection.outlook.com include:helpscoutemail.com ip4:63.247.178.130 -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected];sp=none;aspf=r;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
10 records- brave-ledger-verification=0facfec818585cb89fa001c5b1052d7b5f8afe4710430a57f62dadff299ef654
- google-site-verification=xVn7yFmIDOdSGqX47D8c9pi-g2xb2n4zbSG8xoyTxLA
- SPFv=spf1 mx include:39873840.spf06.hubspotemail.net include:mktomail.com include:spf.ess.barracudanetworks.com ip4:65.242.82.20 ip4:149.72.86.207 ip4:74.209.229.24 ip4:74.209.224.200 ip4:74.209.224.197 ip4:74.209.224.198 include:_spf.google.com include:spf.protection.outlook.com include:helpscoutemail.com ip4:63.247.178.130 -all
- O2v4M1pfZT+y6VsvFOac+s/Fnmvwh9gMM34w5YKcttU3v3ZuirWEfR/e8MC3Xfrs3TbR/7Z2HaNlz+OZSFfKfQ==
- google-site-verification=UAfgKN2CMDDm6vfyMpRjPe8sUgYzW7wcbknQy4gpbEk
- mgverify=e8a36721048f338f1f5fdb4a4618472866c7137e3b8916eeb2bafafe2738aaec
- _jaobtzzhb5z2p5ppzy4s1kk4z6lrcro
- MS=DA65F7204498D7CB4C11504C28740B8D2925C111
- google-site-verification=Ks1gl9x-j8kxOThR6-ygleF0_ouGjggNFiaJSU9zNlc
- atlassian-domain-verification=Ycc2UL/J41jRwpIB9XepGjjHnYBatHEraZ28dndazS0Wh6X3p35abWgod1SWEciR
Full email verification for checkbook.org
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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