Hope you can explain some things about plugins in MiaB, as (I guess) they count as modifications(?)
Right.
Desktop notifications sounds like something we could include in Mail-in-a-Box, if you can submit a pull request modifying the roundcube installation script to do it.
please do for the Control Spamassassin from within Roundcube. Somehow it always thinks actually important emails are junk (like from my health insurance)… And i move the email from the junk folder to the inbox everytime.