Send Emails on Behalf of
How do I send emails on behalf of someone else?
This article describes how to send emails on behalf of someone else, such as your boss or someone else within your organization.
Restart the Mail Merge add-on and select your recently added alias email address:
In the Google Docs Mail Merge sidebar, click Show Email Settings and select your alias email address from the From Email Account drop-down.
In the Google Sheets Mail Merge dialog box, select your alias email address from the From Email Account drop-down.
Google Docs, Slides
Google Sheets, Forms
The From Email Account drop-down will only appear in the Google Docs Mail Merge sidebar if you have already added an alias email address (Step 1).
The Send mail as feature will not allow you to send emails over SMTP using your own account or other accounts within your Google Workspace domain. Therefore, if you want to use a third-party email provider (such as SendGrid) to send emails over SMTP with your Gmail account, you will need to set the provider's SMTP settings.