Solution for 1 CPU screaming

Mike Kercher mike at CAMAROSS.NET
Tue Feb 22 20:36:59 GMT 2005

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Use milter-ahead or milter-sender


Rob Poe wrote:
> And how do you reject mail not known to the MTA if you're using
> MailScanner to intercept ?? 
> We use MailScanner in front of Groupwise's GWIA - to catch bad stuff
> coming in... 
>>>> martinh at SOLID-STATE-LOGIC.COM 2/17/2005 4:11:31 AM >>> Hi
> I have a similar set and have the P4 running MS/SA etc. All email is
> transfered to the internal primary MX - the external MX gets routed
> to  
> the P4 buy the firewall.
> I have around 100 users and load avg is around 0.2 (I reject unknown
> email addressed the MTA which drops about 66% of the traffic before
> it  
> hits MS/SA..)
> Mauricio Cavalcanti wrote:
>> I think it´s half off topic, but...
>> In a medium business office (~1k users), I have 2 servers running
>> Linux: 1 gateway (P4 ~ unused) and 1 mail server (P3 very used)
>> running pop 
>> (dovecot), apache (for webmail), sendmail with DCC, Pyzor, Razor, SA
>> and MailScanner. 
>> The P3 CPU is becoming red in monitoring. They want to include samba
>> file share in P3 server and I think it will not work as they want.
>> I think I can use P4 to make e-mail tests (MS and SA) e after that,
>> this server relays the "low score" e-mail to P3 and make it´s life
>> easier :) 
>> Anyone has this kind of solution implemented or have another ideia to
>> solve this?

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