I found the file to be ever growing, so when it had grown back to 160Mb in a single day, I decided to employ cron on the mail server:11 4 * * * find $HOME/.maildir -type f -name dovecot.index.cache -exec rm {} \; Since my mail is fetched in the background anyway, I am happy to take the performance hit first thing in the morning.
I'm wondering, can this be done safely with connected users? -- Leroy