Business Problem
Microsoft deprecated Basic Authentication for certain Microsoft 365 tenants starting September 2021. As a result, customers are no longer able to use traditional username/password-based SMTP authentication.
This prevents some users from successfully configuring and connecting their Office 365 accounts via IMAP/SMTP in Respond.io.
Current Limitation
  • Respond.io does not support OAuth 2.0 authentication for SMTP with Office 365.
  • SMTP authentication currently relies on Basic Authentication (username/password).
  • Tenants that have disabled Basic Authentication cannot connect their email accounts.
Desired Outcome
Support OAuth 2.0 authentication for SMTP with Office 365