Any way to apply Gmail labels to a mail via their IMAP Extensions?

[jamespo]

If I want something to remain in the Inbox, but also apply a "notspam" label to it, for example.

https://developers.google.com/gmail/imap/imap-extensions?csw=1#x-gm-labels

[lefcha]

Unforunately, such functionality isn't implemented in the latest version as imapfilter.

It would be possible to handle these labels if support was added in the codebase, but there are no such plans at the moment.

From a quick look it doesn't look hard to implement; any code contributions for it would be welcome...