For some business accounts, the app might prompt for an additional authentication factor, such as a One‑Time Password (OTP) sent to the registered mobile number or alternate email address, before allowing full access.
If you're having trouble with a specific error message, let me know! I can also help you with: Setting up or mobile mail apps. Upgrading to Rediffmail Pro for business features. Recovering an inactive account from several years ago. rediffmail login 2021
In addition to free personal accounts, Rediffmail offers paid tiers designed for professional use. For some business accounts, the app might prompt