How to deliver bulk mail in gmail inbox

I think there may be a bit of confusion here!

Gmail is an email service, not a postal service, so it's not possible to deliver bulk mail in your Gmail inbox. Gmail is designed for sending and receiving electronic mail, not physical mail.

If you're looking to send a large number of emails to multiple recipients, you can use Gmail's built-in features to send mass emails. Here's how:

1. Compose a new email: Click on the "Compose" button to start a new email.
2. Add recipients: Enter the email addresses of the recipients you want to send the email to. You can add multiple recipients by separating their email addresses with commas.
3. Write your message: Type your message in the email body.
4. Send the email: Click the "Send" button to send the email to all the recipients.

However, if you're looking to send physical mail to a large number of recipients, you'll need to use a postal service or a mailroom service that specializes in bulk mail delivery.

If you're looking for a way to manage and send large volumes of emails, you may want to consider using a third-party email marketing service like Mailchimp, Constant Contact, or Campaign Monitor. These services offer features like email templates, contact management, and analytics to help you send and track your emails more efficiently.