mu-init - Man Page

use <maildir> as the root-maildir.

By default, mu uses the MAILDIR environment; if it is not set, it uses ~/Maildir if it is an existing directory. If neither of those can be used, the --maildir option is required; it must be an absolute path (but ~/ expansion is performed).

specifies that some e-mail address is 'my-address' (the option can be used multiple times). Any message in which at least one of the contact fields contains such an address is considered a 'personal' messages; this can then be used for filtering in mu-find(1), mu-cfind(1) and mu4e, e.g. to filter-out mailing list messages.

<email-address-or-regex> can be either a plain e-mail address (such as foo@example.com), or a basic PCRE regular-expression (see pcre(3) for details), wrapped in / (such as /foo-.*@example\.com/). Depending on your shell, the argument may need to be quoted.

specifies that some e-mail address is to be ignored from the contacts-cache (the option can be used multiple times). Such addresses then cannot be found with mu-cfind(1) or in the Mu4e contacts cache.

<my-email-address> can be either a plain e-mail address or a regexp, just like for the --my-address option.

specifies the maximum size for an e-mail message. Usually, the default of 100000000 bytes should be fine.

the number of changes after which they are committed to the database; decreasing the value reduces the memory requirements, at the cost of make indexing substantially slower. Usually, the default of 250000 should be fine.

Batch-size 0 is interpreted as 'use the default'.

whether to enable support for using ngrams in indexing and query parsing; this can be useful for languages without explicit word breaks, such as Chinese/Japanese/Korean. See Ngram Support below for details.

reinitialize the database from an earlier version; that is, create a new empty database with the existing settings. This cannot be combined with the other init options.

use a non-default directory to store and read the database, write the logs, etc. By default, mu uses the XDG Base Directory Specification (e.g. on GNU/Linux this defaults to ~/.cache/mu and ~/.config/mu). Earlier versions of mu defaulted to ~/.mu, which now requires --muhome=~/.mu.

The environment variable MUHOME can be used as an alternative to --muhome. The latter has precedence.