Domain Overview
DNS: ✓ 1mo ago
Checker: ✓ 1mo ago
alphatheory.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-07-27 16:23:14 UTC · ↺ Refresh
MX Hostnames
- alphatheory-com.mail.protection.outlook.com
MX Priorities
- alphatheory-com.mail.protection.outlook.com: 0
A / AAAA Records
- 198.202.211.1 (no PTR)
- 2620:cb:2000::1 (no PTR)
Mail Server IPs
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
mimi.ns.cloudflare.com dns.cloudflare.com 2410574429 10000 2400 604800 1800
Primary NS (mname)
mimi.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2410574429
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
rudy.ns.cloudflare.com
mimi.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:198.21.2.183/32 ip4:216.66.64.96/27 ip4:192.196.177.192/26 ip4:209.51.171.96/27 ip4:192.196.182.144/28 include:_spf.salesforce.com include:spf.protection.outlook.com include:servers.mcsv.net include:mail.zendesk.com include:_phishspf.knowbe4.com include:21688311.spf01.hubspotemail.net -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
14 records- google-site-verification=BRqH1LgYmXcj6BJJwfuSHzCZuuk83yg8PIlrBqjwXsA
- google-site-verification=_s9zOd4-SO0cheVGzAPpHGNLB_u69xrPPn--4nn_Ptk
- jSuilk206sRSAio4t4K+MwJuToaGSw2b+Um5JNpxyOqcSGeBtlvfP8e4C5nDHSBTC8rMfiKJhvTZx86BHFUorw==
- logmein-verification-code=f2aaf254-af94-4f8e-9df0-a5fa102f6714
- openai-domain-verification=dv-IPXb3ELH4xod87yf1ITkQkpA
- proxy-ssl.webflow.com
- SPFv=spf1 ip4:198.21.2.183/32 ip4:216.66.64.96/27 ip4:192.196.177.192/26 ip4:209.51.171.96/27 ip4:192.196.182.144/28 include:_spf.salesforce.com include:spf.protection.outlook.com include:servers.mcsv.net include:mail.zendesk.com include:_phishspf.knowbe4.com include:21688311.spf01.hubspotemail.net -all
- zlk7PEyvptN1GvmKI0vnEwJv-N02MPJ7XGTuaHLjPME
- 9NBD-cfPuW9JFAdhPsZhHtMUgQAVrfYRBX85lc00rnQ
- anthropic-domain-verification-bmvtwj=FeCUE45pvXP9HJmfuwO2PCViR
- apple-domain-verification=dMrfbTdMpPuYJT5M
- atlassian-domain-verification=5fjoiNaGQ229J2lpvSKARoz2PKNaVLp39ZTWAOUD/psLaasl5bHcfajmAIO8ZVqw
- c0vjnrorigdnkks8fgi2gg1gv9
- fh7436vn3jnd916i8bt0lpc3q
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