In kmailrc, look for an entry that says compressable=false for your mail-folder. Set it to "true" and compress. I got the issue a year ago. So it might work if you use sarge. Don't know about newer versions.
Best, Rigo On Saturday 28 October 2006 17:29, Joerg Platte wrote: > Am Samstag, 28. Oktober 2006 15:31 schrieb Hendrik Sattler: > > Compress the folder from the context menu in kmail > > I tried it several times, but it does not help. The headers are not > deleted. For example, one INBOX file occupies more than 25M for an empty > folder. > > regards, > Jörg
