Solution to move all mail from old Gmail to new account

The simple reason for this is that Gmail is quite handy and the speed of sending / receiving mail is also very fast.

Step 1: Access to your old Gmail mailbox via "gmail.com".

In Gmail's mail management interface, click the gear icon and click "Setting".

Step 2: The Gmail settings page appears, click the tab "Forwarding and POP / IMAP".

When the Forwarding and POP / IMAP pages open, check the box "Enable POP download for all mail"in the section Download via POP.

Once you've selected it, scroll down to the bottom of the page and click "Save changes".

Step 3: Now go to your new Gmail mailbox and click on the gear icon, select "Setting".

Then click on the tab " Account and Enter".

Step 4: Continue clicking "Enter mail and contacts"in the section Enter mail and contacts.

The login window appears, proceed to enter the old Gmail account information.

And complete the connection steps as directed.

When you're done connecting, check the items you need and press OK. Mailing process may take several hours or 2 days depending on the number of mail.

Step 5: Finally, go back to the settings page of your old Gmail account and click "Add forwarding address"in the section Forward of the Forwarding and POP / IMAP.