Download the software, if you haven't already done so.
Unpack the software. The software is compressed using the GNU Project's "gzip" program, available via anonymous FTP to prep.ai.mit.edu in the /pub/gnu/ directory. To unpack the distribution, type:
gzip -d cyrus-imapd-v1.5.tar.gz | tar xf -Once you have downloaded and unpacked the files, read the installation document in imapd-1.5/doc/install
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