How to send it to the other party's mailbox?

I take the QQ mailbox of my mobile phone as an example, and send an email with pictures to someone else's mailbox. The steps are as follows:

QQ mailbox latest version 6.3.6.

1. Open the QQ mailbox, click the "plus sign" in the upper right corner, and then click Write Email (as shown below):

2. Click the image icon below (as shown below):

3. Continue to click on the following image logo (as shown below):

4. Select the picture you want to add, and then click Add to Mail (as shown below):

5. Added successfully. The recipient fills in the email number of the other party, and then clicks "Send" in the upper right corner to send the photo to the other party's email (as shown below):