You will find this setting at Dashboard -> Projects -> Email Notifications -> General Settings. Below are the settings available:

From Name
It is the sender’s name shown in the email notification a recipient will get. It can be your company name, website name, your personal name, etc.

From Email
It is the email address from which your emails will be sent from. We highly recommend having a setup SMTP plugin to deliver emails correctly for authentication so that mails will not go in the spam or junk folder.

Ignore Emails
Many times you might not want to send email notifications to some email addresses. You can add those email addresses one per line in this setting. The new email should begin on a new line. You can insert email patterns like *@bluehost.com, admin@*, etc. For example,

*@bluehost.com*, it will be true if the email address contains @bluehost.com word anywhere

*@bluehost.com, it will be true if the email address ends with @bluehost.com word at the end

bluehost.com*, it will be true if the email address starts with bluehost.com word