I use dovecot and there is a lot of configurability for shared and public folders.
Public folders are much nicer than having to add separate IMAP accounts; users can subscribe to whatever public folders they want/need from a list. All subscribed folders show up underneath the root namespace folder. I have about 6 types of inboxes based on business roles (sales, pr, hr, it, etc). I have many more folders, beyond general inboxes, that get filled based on sieve filter rules. For example, voicemail alerts get filtered into a special voicemail folder.
Dovecot lets you configure whether the read state is shared or per user.
We use a system where people can flag messages as to whether they are taken for action, are critical, or are completed. These show up in Thunderbird/Roundcube mailbox list as color coded, and this aids in people knowing if emails have been dealt with.
You still have strict control for access/permissions on a per-mailbox basis, with ACL.
All of this could have been done with shared folders under a "shared" user account (either one or multiple shared account, such as sales, hr, etc) with similar results.
Public folders are much nicer than having to add separate IMAP accounts; users can subscribe to whatever public folders they want/need from a list. All subscribed folders show up underneath the root namespace folder. I have about 6 types of inboxes based on business roles (sales, pr, hr, it, etc). I have many more folders, beyond general inboxes, that get filled based on sieve filter rules. For example, voicemail alerts get filtered into a special voicemail folder.
Dovecot lets you configure whether the read state is shared or per user.
We use a system where people can flag messages as to whether they are taken for action, are critical, or are completed. These show up in Thunderbird/Roundcube mailbox list as color coded, and this aids in people knowing if emails have been dealt with.
You still have strict control for access/permissions on a per-mailbox basis, with ACL.
All of this could have been done with shared folders under a "shared" user account (either one or multiple shared account, such as sales, hr, etc) with similar results.
Exchange also has shared/public folder support, but it looks like permissions aren't (maybe?) as fine grained as IMAP/Dovecot/etc? https://learn.microsoft.com/en-us/exchange/collaboration-exo...