On 11.7.2019 20.43, HTMLServices.it via dovecot wrote:
> Hello everyone
>
> sorry i'm not very experienced and also my english
>
> I installed a centos 7 server with ispconfig postfix dovecot 2.2.36
> and roundcube, this server is only a mail archive, so my need is that
> ALL the mailboxes are read-only on roundcube/imap and any user must
> NOT delete the messages. ... so I configured dovecot's ALC following
> the guide "https://wiki2.dovecot.org/ACL"; I think I did everything
> correctly and I don't get errors but entering the webmail roundcube I
> CAN DELETE MESSAGES ..... it seems that the acl have no effect ....
>
>
snip

> if I see the line "Info: User t...@test.com has rights: lookup read"
> it seems that the ACL (lookup and read) are correctly applied,
> but as I was saying above, entering the user t...@test.com on the
> webmail, I can do everything I want to also delete the e-mails .....
> these are days I try to understand but I don't understand what I'm
> wrong and how to solveĀ  ....
> thank you all in advance

This is because the rules are applies as "owner", and not as
"t...@test.com". If you want to prevent t...@test.com from deleting
their mail, you need to create
/var/vmail/test.com/test/Maildir/dovecot-acl with

* owner lr

Aki



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