Can master users retain private \Seen flags ?

[Aki Tuomi]

> On 01/03/2021 10:55 tuuialou <tuuialou at protonmail.com> wrote:
> 
> 
> Hello,
> I am trying to setup a shared mailbox for a small team. Let's say Alice and Bob both need to read and answer sales at example.com. I would like Alice and Bob to retain private \Seen flags on sales at example.com. I know I can achieve that with INDEXPVT on shared or public mailboxes but I am not 100% happy with this solution because:
> - Thunderbird displays sales at example.com/Inbox and sales at example.com/Sent as "subscribed folders" within alice at example.com and bob at example.com. So Alice and Bob can't use the unified view of Thunderbird.
> - I need create a special identity in Alice and Bob Thunderbird's configuration so the sender is sales at example.com when Alice or Bob sends an email from sales at example.com (and not alice at example.com or bob at example.com). But I am not sure another email client is able to do that (on a mobile phone for example).
> - I need to add ACL rights if a new folder is created under sales at example.com.
> So I am now looking at the "master users" feature of Dovecot to replicate this MS Exchange setup https://www.en.its.aau.dk/instructions/Mail/shared-mailbox-thunderbird/ (alice at example.com and bob at example.com log is as sales at example.com). I achieved that but I don't know how to retain private \Seen flags so that Bob doesn't see an email as read even if Alice has marked it as read before.
> Is it possible to retain private \Seen flags with master users? If yes, how can I achieve that?
> Thank you for any help!
> PS: I posted the same question on https://forum.iredmail.org/post77816.html and https://forum.iredmail.org/topic13549-proposal-for-a-exchange-like-shared-mailbox-aka-login-as.html but I couldn't get help and was advised to ask here.
>

Better idea would be to share the folder to Bob & Alice so that they have private indexes. This way they both have their own set of Seen flags.

https://wiki.dovecot.org/SharedMailboxes/Shared

Aki