I am running Exim 4.74, I am sending solicited bulk email.
AOL at times soft bounces us saying we have been temporarily rate-limited and should try again in some number of minutes. We would like to honor there requests and stop to send AOL emails for a short period of time before resuming.
Here is the ideal way our exim server would operate: 1. Emails are delivered outbound as usual. 2. We receive a soft bounce (4xx) to one of our delivery attempts 3. Emails destined to the host of the received soft bounce are sent to the queue for 15 minutes 4. 15 minutes have elapsed, exim resumes immediately sending emails to the temporarily delayed host, queue runners begin to deliver emails to the temporarily delayed host.
Does anyone have any experience implimenting this sort of exim configuration?