- sort order of mailheaders switchable
- message size limit for protocols like pop3
- option to change place of local-folders
- optin for downloading all mails from a pop3-account to local storage
- delete moves mail to Trash folder (imap on server, pop3 lokal trash?)

- do at least some error checking and report them to the user
- thread the whole send/recieve thing (not possible this moment)
- add mail recieve support
- get some sleep