Re: [Devil-linux-develop] DL mail gateway notes

[Heiko Z. <he...@zu...>]

Kari Mattsson wrote:

>
> Few notes from my mailgw.....com project:
>
> - the following services are required:
>   postfix, spamd, freshclam, sagator, syslog[-ng]
> - postfix requires quite a bit hacking for a safe setup, which is 
> accidentally NOT an open relay, but still is an backup MX for many 
> domains, and optionally an gateway for some LAN-side mail servers

I guess it would be nice to post the key settings to the discuss list, 
I'm sure some users will appreciate this.

> - it is a good idea to limit the relay_recipients in postfix so that 
> you don't get overloaded with spam sent to non-existing addresses
> - integrating sagator+clamav+spamassassin to postfix is rather 
> straightforward
> - it would be a great addition, if i could integrate postfix to 
> saslauthd on this same setup, but it is not possible at this time due 
> to a missing saslauth conf file -- this seems to be a known issue

Are we missing this file?

> - last but not least: getting a (graphical) report a something of a 
> key requirement on production systems; currently this seems next to 
> impossible with a stock DL
>
>    - sagator has a /etc/mrtg/sagator.cfg file for rudimentary mrtg 
> graphing -- DL does not have mrtg, only rrdtool.
>    - i tried to find a way to convert that sagtor.cfg to something 
> rrdtool would understand, but my knowledge falls short at this time.
>    - mailgraph is an excellent (best?) graphing tool on 
> postfix+spamassassin+clamav log files, it uses rrdtool. well, 
> mailgraph only works with metalog ja syslog log files, not with 
> syslog-ng. i'm told changing from syslog-ng to syslog might break 
> things. mailgraph also requires few more perl modules than we 
> currently have.

I may add mrtg to 1.2.5, but no promises.
I wanted to add some more stuff anyway, it just depends how much time I 
have available.

> Any suggestions on how I could get graphs on mail traffic?

Pen and Paper ? ;-)

>
> I'm willing to send key parts of my main.cf and some other key files, 
> if there is interest. Either to this list, or to requester(s) directly.



-- 

Regards
  Heiko Zuerker
  http://www.devil-linux.org