I know the straightforward answer is "You cannot. You can have multiple POP/IMAP accounts, but only a single SMTP account". Though, what is the workaround, since the customers really requires it.
The approach I have been thinking is to create Java code that uses libraries to build MimeMessages and transport them to the customer's mail server. Then to deploy this code on the Mid Server. Events could then fill up the ECC Queue to trigger this Java code running on the MID Server.
Though, before I start with this implementation, I was wondering if there was a better approach? Or if someone has already done something similar, since I cannot imagine our customer is the first to have such a requirement?
