Storing a local copy of out going SMTP

[Neil Neely]

It's been years since I used sendmail, so I can only tell you how to  
do this using postfix, but with any luck it will point you in the  
right direction so you can fill in the gaps.

The feature you are looking for is done via bcc, specifically  
sender_bcc_maps:
from man 5 postconf:
sender_bcc_maps (default: empty)
        Optional  BCC  (blind  carbon-copy)  address  lookup tables,  
indexed by
        sender address.  The BCC address (multiple results are  not   
supported)
        is added when mail enters from outside of Postfix.

Configuration looks something like this:
        sender_bcc_maps = hash:/etc/postfix/sender_bcc


/etc/postfix/sender_bcc
someuser at yourdomain.com	special_address at yourdomain.com


This will make a copy of all outgoing mail and inject it into  
something that looks like inbound mail so you can then get fancy and  
throw procmail in the loop or whatever you want to do.  The example I  
included above would send it to a single account, but you could do  
that however you want.

Your request is touching on a more broad topic of "email archiving"  
and a google search in there might be beneficial if you are curious  
of the options that exist out there .

Neil Neely
http://neil-neely.blogspot.com




On Jun 9, 2008, at 11:11 PM, Jerahmy Pocott wrote:

> Hi,
>
> I have a 6.3 system running as a mail server, offering imap, pop3  
> and smtp. The smtp server can be used from anywhere because all  
> users are required to authenticate with SMTP AUTH and it supports  
> TLS. This is using sendmail 8.14.2.
>
> What I would like to do is have any mail submitted to the SMTP  
> server to get automatically stored into an imap mailbox (I'm using  
> mbox format currently) for that user, preferably based on the  
> username they supplied to authenticate, but it could also be by the  
> 'mail from:' field. Previously I have been configuring the users  
> mail clients to do this, but they have proven completely unreliable  
> and of course they may use different clients at different locations  
> etc. Obviously having the server do this is still not 100%  
> reliable, since they could still possibly use a different SMTP  
> server, but I'm not going to worry about that currently as it's  
> unlikely to happen often.
>
> It's sort of an unusual thing to have the MTA do, so I'v not been  
> able to find anything about how I can get this to happen.. I  
> thought maybe there might be a way to get the sent mail to be  
> processed through procmail or something first.. Any thoughts on the  
> best way to make this happen?
>
> Cheers,
> J.
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