Hi,
I know this is a complicated question but what/where do you see
possible bottlenecks in postfix?
Is it CPU? RAM? Disk IO?
I'm building an infra to send out ~3-5 million emails a day.
There are no known peak periods of the day but that's also sure that
the load will be uneven (no emails for a while then suddenly 10-100K
mails in a very short period of time).
The plan is to start with 4 VMs and about ~10% of the planned daily
mail amount but it will reach the planned maximum very soon.
Do you have any experience based recommendations on CPU, RAM or other
tuning parameters?
Thanks,
Zsombor
