This has been brought up a number of times going at least 10 years back:
See:
This is a mail filtering language that is supported by some email clients or extensions .
In theory it lets you write complex filtering rues using a GUI within your mail client, and not require that you login to your panel account (or mailboxes.yourdomain.com ) and create limited rules with a basic web GUI.
I haven’t actually used a provider that support Sieve, so I can’t say how well it works in practice. If it is rarely supported or the tools for it have fallen out of favor and aren’t…
Now that procmail is not an option for managing email. Why is not Mail sieve used.
The current solution with setting filters via the web panel is not good since I can not let other people, that should not have access to the web panel, manage their own mail filters.
Also Mail sieve is standard, it supports numerous features, is integrated into some web mail clients and there is a plugin for thunderbird.
Having a good server side filtering is essential for me and I feel this is one thing where …
Can I use a sieve client to configure server-side mail filters? My sieve client (actually a Thunderbird extension) can’t seem to connect.
It would be great to configure mail filters directly from the mail client instead of having to go to the web control panel.
https://discussion.dreamhost.com/search?q=sieve
But doesn’t seem like it has received any response or consideration from DH staff in any of the instances. Is this something that has been considered at all and rejected? Has it not been considered?
