I am willing to pay up to 250€ for that feature and even more if we had sieve fully operational so that my clients can configure it via thunderbird.
Perfect then.
The other issue that could be added to the bundle is the webmail performance optimization.
You are linking to a file from 2007 I assume most thing are already out of date due to changes in improved “coding” knowledge and automated compressions.
https://projects.horms.net/projects/perdition/
Unless you need to host a large client with over xxx mail boxes or extreme large mail boxes it probably doesn’t make sense adding. As it requires a large scale rewrite for no reasons as it act as an nginx proxy infront of you server for mail things…
Also it is not actively maintained for +5 years …
And the performance tweaks?
It is from 2007 so I assume they won’t be nessarry any more…
Roundcube is very slow now.
https://christiandietze.de/speedup-roundcube/ Might be an idea…
I assume it is mainly caused by the fact the connections are closed every connection
Also How to Convert Roundcube to SQLite | cPanel & WHM Documentation Might be an idea how ever no idea how easy executable it will be
I don’t think it will significantly increase performance and it is too complicated.