Applies ToOutlook for Android Outlook for iOS

Encryption using S/MIME becomes more complex as conversations get larger between recipients. With the growing number of recipients, encrypted messages become nested, increasing the potential for certificate errors. By removing conversation view, we decrease the ability for senders to experience errors during signing and encryption.

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.