webmail issue

i need to change the name of my Sent Items in email. About a month ago I couldn't find my Sent Mail file and kept looking finding it in a new file I never created or seen before: an arrow Items. I called Cox and we found it in my Sent Mail file and don't know how that happened. Bottom line I have a new mailbox, arrow items, sometimes arrow sent. That is where 2-2 yrs of sent files were. I had sent mail in several files  - sent mail and arrow sent. don't know why.

Cox suggested I move the files from one to the other I did that and everything looked good when one day all of a sudden, I watched my new Sent Mail disappear to a few emails and one day  - 0 sent emails. I called COX and they tried to help but said they were gone - there gone. Nothing they could do for me.

I tried some  software but unsuccessful,

I chatted with an agent today who offered hope. He said I need to make another sent mail file, then there was a way to  make that the new sent fail. I understand the part of pointing in folders to show where the file is for sending mail. I NEED HELP GETTING THAT CHANGE DONE BECAUSE THIS IS WHERE  I lost his call. PLEASE help.

Thanks,

Don