163 E-mail can't add pictures directly to the signature file, but you can add the basemap by setting the signature of the business card.

Tools/materials needed to solve this problem: computer, 163 mailbox.

163the mailbox can add a base map by setting the name card signature, as follows:

1. First open the email address of 163, and click the "Settings" option in the upper right corner.

2. Select the "Signature/Electronic Business Card" option in the pop-up page.

3. Then select the option of "New Business Card Signature" in the pop-up page.

4. Finally, add the name of the business card, so that you can select the base map of the business card and click "Save". This solves the problem of setting business card signature and adding base map in 163 mailbox.