Security checks / Check reference / Authentication methods
Auth User Email Authentication Method In Use But Not Allowed By User
High Severity Microsoft 365 security check in the Authentication methods domain.
User is using email authentication but it is not allowed by security baseline Email OTP is weak and phishable; assurance is inconsistent Siemserva runs this check automatically across your tenant and maps every finding to the compliance frameworks below.
Check summary
What this check verifies
User is using email authentication but it is not allowed by security baseline
Why it matters
Email OTP is weak and phishable; assurance is inconsistent
How to fix it
Migrate user to an approved authentication method; block the disallowed method
Siemserva flags every tenant where this check fails and, with Senserva Trustworthy AI remediation, can propose a validated fix you approve before it applies.
Ask your own AI about this check
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Compliance framework mappings
Findings from this check serve as evidence for:
Related Authentication methods checks
Common questions
What does the Auth User Email Authentication Method In Use But Not Allowed By User check verify?
User is using email authentication but it is not allowed by security baseline It is a High Severity check in the Authentication methods domain, one of the 650+ checks Siemserva runs across Microsoft 365, Intune, Defender, and Entra ID.
How do I fix a Auth User Email Authentication Method In Use But Not Allowed By User finding?
Migrate user to an approved authentication method; block the disallowed method Siemserva ranks the finding by Severity and, with Senserva Trustworthy AI, can propose a validated, approve-before-apply configuration fix.
Which compliance frameworks does this check evidence?
Findings from this check map to SCuBA, MCSB, NIST, SOC2, CIS, HIPAA, and MCSB control IM-6. That mapping is what turns a scan finding into audit evidence.
Can I ask my own AI about this check?
Yes. This page includes a free copy-paste AI prompt carrying the check's facts: what it verifies, the risk, the remediation, and the framework mappings. Paste it into Claude, ChatGPT, or Copilot; cite-worthy detail without giving an AI access to your tenant.
All 672 checks with severities and mappings: the Microsoft 365 security checks catalog.