Add a message to the maildir and notmuch database
notmuch insert [option ...] [+<tag>|-<tag> ...]
notmuch insert reads a message from standard input and delivers it into the maildir directory given by configuration option database.path, then incorporates the message into the notmuch database. It is an alternative to using a separate tool to deliver the message then running notmuch new afterwards.
The new message will be tagged with the tags specified by the new.tags configuration option, then by operations specified on the command-line: tags prefixed by '+' are added while those prefixed by '-' are removed.
If the new message is a duplicate of an existing message in the database (it has same Message-ID), it will be added to the maildir folder and notmuch database, but the tags will not be changed.
Option arguments must appear before any tag operation arguments. Supported options for insert include
--folder=<folder>
Deliver the message to the specified folder, relative to the top-level directory given by the value of database.path. The default is to deliver to the top-level directory.
--create-folder
Try to create the folder named by the --folder option, if it does not exist. Otherwise the folder must already exist for mail delivery to succeed.
This command returns exit status 0 if the message was successfully added to the mail directory, even if the message could not be indexed and added to the notmuch database. In the latter case, a warning will be printed to standard error but the message file will be left on disk.
If the message could not be written to disk then a non-zero exit status is returned.
Carl Worth and many others
2014, Carl Worth and many others