I think its kind of pointless.
All your incoming mail is going to be unencrypted - encrypting it once
received isn't going to add any security through the transit process.
you might have some added security if you both:
allowed only ssl/tls for imap and smtp outgoing
encrypted unencrypted messages when received (regex for PGP info to
determine)
but you still have a big problem with the transit process – which makes
other stuff almost pointless
On Wednesday, August 6, 2003, at 04:48 PM, Rich Johnson wrote:
> Hi folks--
>
> Does anyone know of a way to encrypt the mail storage? My goal is to
> add a layer of privacy to the mail--especially mail for virtual
> users--which is stored on the server and replicated on the server
> backups.
>
> - An ideal method would support per-user/virtual-user keys for
> delivered messages.
> - Queued and/or frozen messages could use the TLS key.
> - Both the MTA(exim) and IMAP server (courier-imap) would need to
> support the method chosen.
>
> If it matters, I'm configured for Maildir format.
>
> Thanks,
> --rich
>
>
> --
>
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