| SYSTEM INFORMATION | |
|---|---|
| OS type and version | Ubuntu 22.04 LTS |
| Webmin version | 2.303 |
I need to add an email retention policy to my Virtualmin servers. I am using PostFix, dovecot etc.
I find people talking about it being available, but I am unable to locate any information on configuration or even where to find the settings. Several of the organizations that I host email for are asking about it.
Advice please.
Thanks
SWSinRI
You’re probably after the lazy-expunge plugin in Dovecot.
If you’re using Maildir mail spools, you have many options, though (every email gets a file, and any tool that works with Maildir can work with it, but Dovecot indexes may take a while to catch up if you don’t use the expunge interface).
Like keeping a copy of ALL of it for record keeping/whatever?
I kinda had the impression you could do that with Postfix.
Oh, I guess that’s also part of “retention policy”, but usually when a company wants a “retention policy” they mean they want to know that old email won’t be hanging around to be a legal liability beyond the point where they are required to retain it. But, yeah, if you want to save every message for a specific time, BCC would be one good way that insures users can’t delete the messages before policy allows.
The lazy-expunge plugin I mentioned can also make deletions move a message to another folder rather than actually deleting (and then other policies can remove the messages later).
we had a client years ago that wanted all incoming mail BCC’ed to another account as a permanent archive.
when they moved away from us six years later, that account had 1.7M messages 
