Design a SMTP server for High Volume Outbound Email

Question

We are developing an application which will require to send around 30 outbound emails per second. We have a server running SMTP but this machine in cloud hosted and I do not have any idea what kind of configuration will I require to support such a load. I do not even know if this load is considered to be average or high. Do i need to do anything special for such a load. Do i need a dedicated quad core server for this kind of load or lets say just 1/10th CPU of a quad core server is good enough

Answer 1

Hm

what for?

• 30 emails per second is nothing. I wrote a server like 10 years ago hitting about 5000 per second (to one other server taking it down in the process - custoemr wanted as fast as possible, i delivered).

• Get any little MTA and jst use it. No sense in writing something yourself for that low volume.

• Unless you hit the server with a lot of stuff at once (loading it for transfer), a small VPS should be ok.

Seriously, 30 emails per second is what I sometimes send from my dialup account. THis is not even a visible volume for a decent message transfer agent. It is definitely NOT "high volume".