Is there any plan to add some ability to have some server-side (i.e. on the Helm) mail rules. Things like: “put messages containing this subject in this mailbox”.
Rules are implemented in most desktop clients but is absent in mobile clients such as iOS default Mail client.
If one leaves a desktop client open to apply the rules then it’s possible that the mobile client will see it first then then need to update again and it will move.
So having it done server side is preferable.
Some other items that would be nice would be something like (intra-domain) mailing lists or aliases that will be duplicated across multiple mailboxes.