Em client let see a red traingle

I can’t send or receive e-mails, because there is a red triangle behind my mail address, what does this mean

Could be eM Client has just lost connection to the Internet. Check if your other internet programs like browsers are working or not.

If other internet related programs are working, and you have already tried closing and reopening eM Client and rebooted your computer, then click on the red triangle and update this thread what it says.