Am 10.12.2014 um 21:48 schrieb Thomas Klausner:

On Wed, Dec 10, 2014 at 09:26:31PM +0100, Reindl Harald wrote:

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Am 10.12.2014 um 21:19 schrieb Thomas Klausner:

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I have lots of these files:

/home/wiz/Mail/my-folder-name/cur/.imap/1238738125.13533_23713.danbala:2,S/dovecot.index.log

What are they for? Why are they here? Can I remove them?

RTFM: http://wiki2.dovecot.org/IndexFiles

Thanks, but I had read this.

I still don't know what they are good for, why they stay there for days and if I can remove them. After all, they are not the caches, but some "transaction logs" (I don't know what this is)

http://en.wikipedia.org/wiki/Transaction_log

why don't you just keep your fingers from data maintained by a server application? it's not your business to touch them