On 16.10.18 12:48, Yassine Chaouche wrote:> I'd like to let my colleagues redirect mail automatically (via a sieve > filter) to other mailboxes within the same domain, but deny redirects > to outside domains [...] Ideas ?Set up a simple internal web application or some other mechanism that allows your colleagues to enter the local address part for forwarding only. Use backend logic to generate a sieve script containing redirect :copy "localpart at yourdomain.tld"; or whatever suits your needs. -Ralph
Thanks Ralph but I don't fully understand how could this prevent them from forwarding to any other domain by other means, for example by using a managesieve-able client Yassine. On 10/16/18 12:37, Ralph Seichter wrote:> On 16.10.18 12:48, Yassine Chaouche wrote: > >> I'd like to let my colleagues redirect mail automatically (via a sieve >> filter) to other mailboxes within the same domain, but deny redirects >> to outside domains [...] Ideas ? > Set up a simple internal web application or some other mechanism that > allows your colleagues to enter the local address part for forwarding > only. Use backend logic to generate a sieve script containing > > redirect :copy "localpart at yourdomain.tld"; > > or whatever suits your needs. > > -Ralph
On 16.10.2018 15:43, Yassine Chaouche wrote:> I don't fully understand how could this prevent them from forwarding > to any other domain by other means, for example by using a managesieve- > able clientWell, your OP made no mention of your environment. ;-) You posted on the Dovecot mailing list, so I suppose we know what your IMAP server is, but you mentioned nothing beyond that. I made the assumption that your users are allowed to use sieve, based on the subject line, but you did not elaborate on how they use it. Simplest form: Sieve files. If you generate the files, you can screen the content and also keep them read-only for users. If you have important restrictions/conditions, you need to mention them to us. -Ralph