So I suppose you're not a fan of the email hosting systems on the planet that 
bundle many services onto 1 box. Thanks for the feedback.

-
Doug Mortensen
Network Consultant
Impala Networks
P: 505.327.7300

-----Original Message-----
From: dovecot-boun...@dovecot.org [mailto:dovecot-boun...@dovecot.org] On 
Behalf Of Alan Brown
Sent: Tuesday, October 29, 2013 10:05 AM
To: dovecot
Subject: [Dovecot] Encryption solution for messages at rest


> Date: Tue, 29 Oct 2013 08:54:04 +0100
> From: Robert Schetterer <r...@sys4.de>
> To: dovecot@dovecot.org
> Subject: Re: [Dovecot] Encryption solution for messages at rest
> Message-ID: <526f699c.9080...@sys4.de>
> Content-Type: text/plain; charset=ISO-8859-1
>
>
> you shouldnt host mail/imap services on the same servers with massive 
> http hosting,


You shouldn't host anything else on a webserver FULLSTOP.

Webservers are best treated as "disposable" and should be heavily sandboxed. 
Any resources they can use should be vetted and ideally set as "read only"

Inbound external access should be firewalled down to the webserver ports and 
OUTBOUND traffic should be firewalled too (If it has no business initiating 
external connections then block all SYNs), in order to stop it becoming a DDoS 
zombie.

It's foolish (at best) to have mail servers running on a webserver, because if 
it's compromised it can immediately be used as a spam engine without much 
further effort.

At least if it has to hand mail off to another mailserver you have a chance to 
run outbound filtering on the emitted mail without worrying about that being 
compromised too.





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