Menu-file->; Options-> Mail-> Create or modify the signature of the message: signature->; Create a new edit signature. In edit signature mode.

1. Move the cursor to the position where you want to display the date and time, and press Ctrl+F9, and {} will appear.

2. Enter the following: {date \ @ "yyyyyear m month d day"} {time \ @ "hh hour mm minute"}

3. Click Save to save the designed signature file and finish.

When inserting the signature of an edited e-mail, the time and date of insertion will be displayed. If you need to update the time after editing the email for a long time, press ctrl+A to select all, and then press F9 to refresh the time.