Legacy app password disabled and scanner workflow breaks

Minimal guidance for messy support realities.

Scenario

An organization disables legacy app passwords, and a scanner or line-of-business device immediately loses sign-in capability.

Recommended Resolution Path

  1. Confirm the workflow is still using a basic-auth style mailbox credential rather than a modern relay method.
  2. Move the device to a scoped relay or application-specific send method where possible.
  3. Review message tracing so you know whether authentication, transport, or policy is blocking mail.
  4. Document the replacement pattern so each legacy device is not solved ad hoc.

Technician Notes

Document what changed, what confirmed the fix, and whether the issue points to a broader standards gap worth addressing for the client.