Services like turbo smtp?
 

We used this for a while, it is great. However, we do not send emails with a fixed interval, so their plan got pretty much useless as month month we sent 100%, next month 1% of our available relays. That's a waste of money since it is not rolled over to the next month or so.

Any other smtp servers that we can look into? Note that this is for less than 10k emails/month.


Cheers.