Re: Clicking on new mail causes Index problem

>Are the folders mbox or maildir?  Maildir is better speedwise, but also if 
>something gets corrupted the rest are not at risk.

>If you have the patience you could create some new subfolders and drag 
>messages (many at a time, if appropriate) into them, ending up with more but 
>smaller mailboxes.  KMail allows nesting, for instance this folder is Inbox > 
>KDE-Lists > kde-pim, which makes it easier for searching.  I can search on 
>KDE-Lists + subfolders, or on Fedora + subfolders, for instance.

>Incidentally, drag'n'drop is also the way to convert folders from mbox to 
>maildir - create the new folders, move the mail, delete any obsolete folders.

How robust is this?  It seems I'm currently barely able to drag even a month (500 or so messages) without Kontact crashing, with 100 percent CPU resources used.  

Can I manually create these folders using the file manager?  Or manually transfer the messages once I create the empty mbox folders in Kontact?

I think part of the problem is just the size of the folder:  2.5GB, with over 40,500 emails.  My other folders had the same number of emails but were only half the size...1.2GB or less.

Thanks as always for the help!