Send SMTP mail message Did not work - It stopped working suddenly

My community test robot 2021.4 suddenly stopped sending e-mails. It was not changed. About a week ago it stopped working. Does not work in 2 different environments and systems.
I created a separate project with only one email activity (Send smtp mail message) and it’s the same problem, it doesn’t work.
I was setting up 2 different e-mail accounts. gmail and office 365. Not working. the robot stops on Send SMTP activity and stands still or gets a message that the connection time has expired.

Does anyone have a similar problem with UiPath.Mail.Activities 1.10.4 or 1.9.3?
Activity suddenly stopped sending e-mails.
He stops and that’s it.

Please help. The hands drop