Assing tags depending on email subject

[t-lie]

Is your feature request related to a problem? Please describe. Sometimes documents don't contain general keywords what could be used for automation and assing tags.

Describe the solution you'd like It would be really helpful if there would be a function what already checks the email subject of incomming mails and if it contains known tags, these should be assigned to the new document within inbox.

Describe alternatives you've considered I think only manual assigning of tags would be an alternative.