You can use their product if you like, but if you value security and privacy you won't. I can't fathom why anyone would trust their private data to a data mining company. I just don't get it. Nothing is free.

If you want to scale MTA, then run clusters with load balancers. Its how they do it. I suspect they started with an open source MTA like sendmail and "fixed" it.

--Curtis

On 10/19/2010 11:31 PM, Jay Bendon wrote:

Everything is built inhouse and guarded very closely. U will not be able to duplicate their product without significant financial investment or just use their product.

On Oct 19, 2010 10:27 PM, "Julio Cesar Covolato" <ju...@psi.com.br <mailto:ju...@psi.com.br>> wrote:

 Hi!

I wonder know what system Gmail use. They use postfix as mta? I dont think so...

How to scale for milions acounts, how do they do it?

Thanks.

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