That is not a bug. It is a feature of the original design of the game software. Not that it cannot be changed to operate as we would all prefer. However, ZOS would rather create new flawed features with implementation errors for the next DLC or "chapter" that they want us to buy A$AP. So they don't have either the personnel or the budget to improve features such as e-mail transit time. Considering some of the outcomes when ZOS does "improve" a feature, we may all be better off if they leave this one as it is.Most of the time, any mail you get is not received until you relog or zone elsewhere.
Most of the time, any mail you get is not received until you relog or zone elsewhere.