How to remove attachments in webmail

[#1]

I'm trying to reduce my mailbox size by deleting attachments but can't seem to find a way of doing this within webmail? Am I missing something?

[#2]

You can do that if you use some e mail apps such as M/S Outlook, but this is If you use POP3 not IMAP. That's why I only use WEBMAIL as an emergency option.