On Sun March 31 2019 09:26:27 Gene Heskett wrote:
> There are around 60100 messages in that folder

I have around 350K messages in kmail/imap but not more than 14K
in any one folder and most folders much smaller.

No problems and much faster.

It's easy to organize older files into yearly or even monthly
folders and kmail can easily search recursively.

--Mike