Why Zerodha blocks Rediffmail email IDs

Sat, 20 Jun 2026 00:00:00 +0000

Zerodha restricts Rediffmail email IDs for two documented reasons: it has observed an increase in cyberattacks targeting Rediffmail accounts, and emails it sends are frequently not delivered to Rediffmail addresses. Because every contract note, statement, OTP and alert reaches you by email, a provider that drops or bounces those messages is a compliance and security problem, not a minor inconvenience. New registrations on Rediffmail are not accepted, and existing Rediffmail accounts are blocked from resetting the Kite password by email.

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Why Zerodha blocks Rediffmail email IDs