<html><head></head><body><div class="ydp73193affyahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div dir="ltr" data-setdir="false"><div><div>dovecot version = 2.2..27</div><div><br></div><div>I have a running debian server ( jessie-backports ) supporting email for three different domains. It is working fine.</div><div><br></div><div>My boss has asked me to look into using Shared folders/mailboxes - for instance, he wants selected users of Domain-A to be able to see the shared Inbox of the user "support" who is also in Domain-A. </div><div><br></div><div>Sorry if my questions are basic, but here goes:-</div><div><br></div><div>1. Can I simply change the relevant dovecot configuration files and introduce Shared mailboxes into an already running system? </div><div><br></div><div> Very basically, add the imap-acl plugin, the shared namespace, the dict file and restart dovecot?</div><div><br></div><div>2. If I can do this, would it wipe out the tens of thousands of existing emails I have on the system now? </div><div> </div><div>i.e. Does Sharing have to be introduced when new email server is being brought up? Can it be added on-the-fly to my working server?</div><div><br></div><div>Would the emails in /var/mail/vmail/Domain-A/alan/mail seemlessly populate /var/mail/vmail/Domain-A/Shared/alan/mail after making such changes?</div><div><br></div><div>3. If adding the Sharing to my running system is possible, can I add it on only one of my three domains? I have a test domain with one user.</div><div> </div><div>My principle domain ( Domain-A ) has many users, and as I stated previously, very very many stored emails. Emails I absolutely cannot afford to lose.</div><div><br></div><div>Any insights are appreciated.</div><div><br></div></div></div><div><b style="font-family: times new roman, new york, times, serif; font-size: medium;">Alan Stevens</b><br></div><div><b style="font-family: times new roman, new york, times, serif; font-size: medium;"><br></b></div><div class="ydp73193affsignature"><font size="3" face="times new roman, new york, times, serif"><b>---||---</b><br>alanrstevens@yahoo.com<b><br></b><font color="#cd232c">https://www.linkedin.com/in/alanrstevens</font><b><br><br></b></font><font size="3" face="times new roman, new york, times, serif"><font color="#cd232c"><b><br></b></font></font></div></div></body></html>