> I read that XFS is a good choice, but is not > too reliable... Are you using Maildir or MBOX?
In any case: XFS would be my last choice: XFS is nice if you are working with large files (> 2GB), but for E-Mail i'd stick with ext3 (or maybe even reiser3) as it works very well with small files. If performance is a problem (iostat output?): Mount it with 'noatime' or/and use a special device for the journal. Regards, Adrian