"The email account that you tried to reach does not exist" error
This error usually shows when there are mistakes in the recipient's email address.
Check for these common problems:
- Quotation marks
- Dots at the end of the address
- Spaces before or after an address
If you've checked the email address for mistakes and the message still won't send, the email address might be disabled or deleted, or it might not exist.
I'm trying to send a message to someone at my work, school, or organization
If you're using Gmail to send a message to someone at your work, school, or organization, try searching your contacts for the person's email address. The search results will include everybody in your domain unless your administrator has chosen to hide individual users from the directory, or has disabled contacts sharing entirely.
If you still can't email someone in your organization, contact your admin.