ContributionsMost RecentMost LikesSolutionsRe: Invalid Email Format - Catalina OS Just to clearify, even rebooting doesn't always fix it. We are using 2-step authentication as well. Re: Invalid Email Format - Catalina OS I am having the same issue. At some point within 24+ hours of continous trying, it will just work. Otherwise, I am getting the same issue constantly. Downloading latest LogMeIn Control pannel for Mac OS on their website. Currently running Mac OS Catalina. @LogMeIn Please get this fixed!