I have noticed that Office 365 has a limit of 30 emails per minute. We have recently switched to Office 365 and I am not sure what will happen with our routing emails where 100s of invoices or statements get sent to clients emails. Is it going to fail after it reaches the limit of 30 or is it going to queue the rest and send them within a period of time?
I just used the pay-for SMTP Relay for a client and it works well. However, I still encouraged the client to issue an enhancement request to throttle outbound emails. Since Epicor is a Microsoft Partner, I would expect E10 to play nice with O365…
Most mailers throttle to prevent abuse. The best solution is usually to just host an Exchange relay on-premise, with its own SMTP server for internal use only. You can also set it up on whatever third party web site host you are paying…