[alienreborn]

FYI: They store your credentials on their servers. Its not like outlook/thunderbird where you credentials are stored locally.

[nift]

Thanks for letting me know! Did not know that.

That is quite scary to be honest and do you know the reason as to why they do this?

[Lalabadie]

I believe that's only if you enable and use Send Later (because they need to be able to send an email in your name, even if your device is offline).