backup cyrus.*?

[Ross Boylan]

My mail spool has a lot of files cyrus.cache, cyrus.index, cyrus.header.
http://cyrusimap.web.cmu.edu/twiki/bin/view/Cyrus/Backup notes that it
may be desirable to exclude some files, but only mentions squatter
specifically (I'm excluding cyrus.squat already, and those are the
biggest files).  Some of these other files (esp. cyrus.cache) are pretty
big; if they are recreated automatically I'd like to skip them--unless
"automatic" recreation is very slow.

My daily incremental backups of my mail are over 300MG compressed, which
seems excessive.

Thanks.
Ross