Recently, because I have a large amount of mail to send and receive, my C drive (the system drive, and FOXMAIL is also installed under it) is left with only a bit over 300M, and it keeps prompting that disk space is insufficient. I checked and found that the mail is taking up a lot of space. If I delete it, it's all very useful; if I don't delete it, I don't know how to deal with this dialog box. Now I want to save the mail under another drive letter so it won't keep taking up space on the system drive. Does anyone have a way? Asking for help.

