The display duration for toast messages is too short. Although the message text is brief, the message is displayed for such a short period of time I often cannot read it all.
Also, toast messages don't identify from which account the message is originating. In this case, I am talking about toast messages indicating some failure in the connection with a specific account server. Since this happens nearly every time AquaMail connects, it would be useful to know which account is once again throwing an error.