5.3.1 Cache File

The messages which have to access via network (e.x. IMAP, NNTP folder) are cached as a local file so as to save network traffic or to enable off-line operation. The cache file is saved under the directory `~/.elmo/cache'. To expire cache, type M-x elmo-cache-expire-by-size. The command deletes cache files to the specified size by the order of last accessed time.