emClient suddenly stopped working for entire family

Yesterday, December 4th, suddenly emClient stopped working for my entire family.

Our google accounts are rejecting the credentials with google generating an email saying an access was prevented “from an app that doesn’t meet modern security standards.”

My other email accounts are not working either. I’ve tried diagnostics and fixing, resetting my router, etc., but nothing is working and I do not know how to diagnose the issue further.

Any help would be appreciated.

Hello Afzal,
can I ask which version of eM Client are you running? Check in Help > About section and copy the version number for me, please.