Opening emails with Microsoft outloo is usually caused by coding problems. The solution is as follows:

1. First, double-click to open the mail.

2. For the top menu and other actions, click the small arrow.

3. Select encoding, other, Unicode(UTF-8) (garbled characters may also be other fonts, so you can choose other encoding to try).

4. You can also select a message in the message list and right-click >; Open.

5. select view >; Code > UTF-8, as shown below.

6, the effect is as follows, and now it is back to normal.