Hack to use imap’s NOTIFY extension as an efficient mechanism to update emails via PUSH. Most IMAP PUSH implementation rely on the IDLE extension to check for changes in a mailbox.
However using it requires maintaining one TCP connection per IMAP folder. This is not only inefficient and complex but also some IMAP servers limit the number of connections per client. This project instead relies on a newer IMAP extension called NOTIFY, which can watch on all global changes with a single command. It requires support in the IMAP server as well. Dovecot provides this feature since xxxx.
This project has no dependencies except for python itself:
$ pip install "git+https://github.com/Mic92/imap-notify"Unless imap-notify receives the configuration file as a first argument it will look it up in ~/.config/imap-notify/imap-notify.ini assuming that $XDG_CONFIG_HOME is unset or equals to ~/.config. To get started copy and modify the imap-notify.ini template from this repository to that path.
usage:
while true; do
python imap-notify.py
# or offlineimap/isync
emacsclient --no-wait --eval '(mu4e-update-mail-and-index t)'
done