Contents:

1. Overview
2. Setup
3. Usage
4. Configuration
5. Implementation details
   1. mbsync config
   2. notmuch config
   3. IMAP IDLE notifications
   4. pass and systemd
   5. systemd user service
   6. msmtp config - TODO

This set of scripts is a glue between mbsync, notmuch, ZX2C4 password-storage and goimapnotify IMAP notification daemon.

Main goal is to provide offline mail system with continuous new mail delivery without network overhead and delays. That means that I want to pull mail from server only when there are new messages and push back only changed IMAP folders. First goal achieved with goimapnotify daemon which monitors specified in it's config IMAP folders and triggers external commands on new events, the second one achieved with mbsync tool from isync package which synchronize changes between IMAP server and local storage. For new mail indexing I've chose notmuch because:

• it's ultra fast;
• easy to use;
• present in Arch's community repo (no need to compile);
• natively integrates with Emacs.

I'm using Emacs for mail reading but EasyMail is mail reader agnostic and will work in background without any MUA at all, supposed that user can use any that supports notmuch.

There are a lot of blogs/articles in network like 'My perfect mail setup' and each author trying to implement something new. So here I've tried to join all found information together.

Copy easymail script somewhere in PATH, easymail@.service in ~/${XDG_CONFIG_HOME}/systemd/user, and easymail-{pre,post}-new.sh to ${MAILDIR}/.notmuch/hooks/{pre,post}-new. Script depends on 3-rd party tools described above.

Note: for Gmail accounts All Mail folder Show in IMAP should be unchecked in Lables menu, unchecked in Labels settings menu. Pre-new notmuch hook handles move to trash messages tagged as "+trashed" and to work propery both with Fastmail and Gmail the last one should set Auto-Expunge -> off and Immediately delete the message forever in Forwarding POP/IMAP settings menu.

➤ easymail help
usage: 'command'

Supported commands:
    disable   - stop account synchronization using IMAP IDLE,
    enable    - start account synchronization using IMAP IDLE,
    get       - get account information,
    help      - internal commands help,
    index     - index mailbox with 'notmuch'
    list      - list configured accounts,
    remove    - remove account,
    setup     - setup new mail account,
    status    - show account status,
    sync      - sync account with remote server.

Try 'easymail help command' to see 'command' help.

➤ easymail help setup
usage: setup [--enable] [--full-name=name] [--port=port] [--server=server] 'account' 'email' 'pass'

Setup and optionally enable 'account' for 'email' with 'pass' password.
    --enable     - start new email polling just after setup,
    --full-name= - use non-default full user name,
    --port=      - use non standard IMAP port (default: 993),
    --server=    - use custom IMAP server.

Server name will be extracted from email address, newly created account will be disabled
after setup, full user name will be taken from global 'notmuch' configuration.

'pass' file should contain 'app-pass' field.

Use: easymail enable 'account' to start new mail polling or specify '--enable' above.

Example 1: I need to setup my work email Vasya Petelkin <vpetelkin@megacorp.com>

➤ easymail setup Megacorp vpetelkin@megacorp.com work/megacorp

This will produce four files: ${XDG_CONFIG_HOME}/easymail/{mbsync,notify,notmuch}.conf and ${PASSORD_STORE_DIR}/.easymail/Megacorp.gpg relative symlink to ${PASSWORD_STORE_DIR}/work/megacorp.gpg. Since ${PASSORD_STORE_DIR}/.easymail is hidden it will be invisible for regular pass command and browserpass browser extension.

Script will discover all IMAP folders on server 'imap.megacorp.com' and put them into 'mbsync.conf' and 'notify.conf'.

Note: pass file should contain application password field named 'app-pass' (field name may be changed in config), account name should NOT contain spaces.

Example 2: Like (1) but enable messages polling just after setup:

➤ easymail setup --enable Megacorp vpetelkin@megacorp.com work/megacorp

Example 3: If email does not mutch IMAP server (for example corporate email hosted on Gmail):

➤ easymail setup --enable --server=imap.gmail.com Megacorp vpetelkin@megacorp.com work/megacorp

All three examples will use default full user name from global notmuch configuration, if need to set it to different then provide --full-name="Vasiliy Petelkin" to easymail script.

Note: if using non-default GNUPGHOME and/or PASSWORD_STORAGE_DIR then need to create ~/.profile.d/env.d/user.env with proper values or update provided systemd service and set them there. I did the first with my bash profile.