Stefan, can you confirm that you are seeing the white page on an Android device?  I was able to replicate against my Samsung device but was not able to duplicate it on an iPhone device.

I was also able to replicate the issue of "Delete All in Folder" NOT working on the iPhone mobile device.

I have added both of these tasks to our bugs list.

Robert tested previous versions of SmarterMail with the same results so it looks like an Edge update might be the culprit and we test some previous Edge versions to see when this occured.  In the meantime, we will add to our bug lists and see if we can work around whatever Edge is doing.

Regarding login page: Robert, I can confirm the behavior on Android devices. Tim, with the previous release of SmarterMail I didn't have this issue. I didn't test it on Apple mobile devices.

Regarding "Delete All in Folder" NOT working: I see this on my Android devices using Google Chrome. With the previous release I used this feature regularly and it worked. I'm using Edge browser on my Android devices as standard. The last update of Edge browser on Android is a while ago. But there was a WebKit update for Android a few days ago which is known for some issues.