Your recommendation please: big volume mail solution

[ram]

On Tue, 2007-11-06 at 21:29 +0200, Arthur Sherman wrote:
> Hi,
> 
> A client asked me to build for him a mail solution, capable of sending up to
> 1 milllion emails a day, while each email doesn't exceed 50KB in size.
> 
> How do I calculate:
> 1) how many servers
> 2) how do I calculate the above
> 3) is there any max emails a day from IP/domain, which triggers black and
> blocklists
> 4) what is your recommended software solution
> 
> On this stage, most distribution would be in single country.
> 
> Thanks in advance
> 
> Arthur
> 
> 
This is more of a MTA question. Dont really need MailScanner. 

Using a postfix MTA my  outgoing server (singe Xeon , 3.5GB RAM )  is
able to send 200k mails a day without much issues. 

This is not a dedicated machine too , it has other roles too 

Thanks
Ram