Synchronize a maildir with an IMAP server

Current versions

isync requires the following formulae to be installed:
openssl 1.0.2o_1 SSL/TLS cryptography library
berkeley-db 6.2.32 High performance key/value database

Recent formula history

ilovezfs Use “squiggly” heredocs.
ilovezfs isync 1.3.0
ilovezfs isync 1.2.2
James P. Ascher isync: add plist
Viktor Szakats isync: use secure head url

Formula code at GitHub