I am looking into an issue where all Clarity emails are not been delivered to recipient, using amazon SES. Have verified no issues on Clarity side, basically when Clarity ask to send bulk emails (say 40) in few second, SES cannot pick all request, some connection timeout. Hence only few emails goes out successfully.
In this case have configured Postfix on Linux machine to send email request to amazon server, this keeps track of success and queued emails and retry for timeouts. I can test successfully this from server command line, however am unsure how to make change in Clarity so that it will send request through Postfix and not directly using amazon email server ? Or how to set Postfix as email forwarder for Clarity ?