How to send a message to someone else's mailbox

If the mobile phone has its own email address to send directly, then write down the other party's email address. If not, download a qq email or 163. 1. Right-click the file you want to send. If it is a folder, it needs to be compressed. If it is not a folder, you can right-click it directly. 2. Find the compressed file. 3. Add the recipients you want to the qq friends list. 4. If you are not a good friend, you need to add an email address in the "To" column, enter the email page, and click "Add Attachment". 5. Add the file just compressed. 6. After the file is uploaded, it can be sent. Use QQ email: enter your QQ email → write a letter → fill in the recipient's email → subject → click add attachment → fill in the text → send.