Hello, iOS 26.6 is still a beta (currently beta 5), so I guess you are part of the Apple beta program, otherwise you should not get 26.6 yet. It seems Apple has changed a way for a specific security mechanism in their OS web browser that eM Client use. We don’t know if it is an intentional or just a temporary issue for 26.6 beta 5. However we’ve internally developed a workaround for the problem and currently we are monitoring if this issue will or will not be present in the final iOS 26.6. This should be clear in a few days at latest. Sorry for the inconvenience, but it is a breaking change on the Apple side.