Sending email from alias via Gmail

To send email from an alias address through your Gmail account, generate a Google App Password, then add the alias under Settings → Accounts and Import → Send mail as with smtp.gmail.com:587 as the SMTP server and the App Password (not your normal Gmail password) as the credential. The alias has to already forward to your Gmail, and your account needs 2-Step Verification enabled. Prerequisites : The alias address is a forwarder pointing to your Gmail. You need 2-Step Verification enabled on your