Add New Email Domain error

I have hosted the ERPNext in my local VM.
ERPNext : 13
My domain name is hosted in a shared hosting.
I use Gsuit for business emails.

Error : Request Timed Out

I have disabled all the firewalls.

email : user@abc. com
Email Server :
SMTP Server :

Check is less secure app settings is enabled in GSuite

Yes that is disabled

disable it

Sorry i have disabled that option.

Less secure app must be enabled

I have tried both ways none worked