Why are e-mail messages in outlook underlined and grayed out? How to remove it, or how to set it?

The messages in outlook are crossed and grayed out, which is caused by the wrong settings. The solution is as follows:

1. First turn on the computer, find outlook on the computer desktop and open it, as shown in the figure.

2. After entering the outlook page, click "File" in the upper left corner, and then select "Options".

3. A setting box will pop up, and select "Mail" from the menu on the left, as shown in the figure.

4. Then find the dialogue cleaning module, click Browse, and select a folder. When cleaning, the cleaned conversations will be moved to this folder.

5. After setting, click "Clean" above, as shown in the figure.

6. A confirmation box to clear the dialogue will pop up. Just click "Clean" here.