Schedule your email to send at a later date and time in Gmail with the Schedule Email by Gmail extension. This simple extension allows you to manage email sending according to the rules you set. It offers custom settings for send times, allowing you to choose a custom time that suits your needs. Additionally, you can limit the maximum number of emails sent per day, with a recommended maximum of 500.

To use the extension, simply install and enable it. Then, when composing a new email, open the email timing sending setting page and set the sending rules as needed. Write your subject and mail content, and click the "Schedule" button instead of the "Send" button. The email will then be sent regularly according to the set rules.

Please note that this extension is developed by a third-party developer and is not affiliated with Gmail Inc.