Q. How many messages can GreenArrow Engine send and receive per SMTP session?
Unless configured otherwise, when sending emails, GreenArrow Engine attempts to deliver one message per SMTP session. This means that if an email provider imposes a limit on how many messages they will accept per SMTP session, you don’t need to worry about exceeding that limitation.
When receiving emails, GreenArrow Engine does not impose a limit on how many messages it will accept per SMTP session. This means that if you wish to improve the performance of an application that injects messages into GreenArrow Engine, one potential way of doing that is configuring the application to inject multiple messages per SMTP session.