So, I was able to figure out how to expedite the process. The total messages to be processed was around 600k. In order to allow this to go quicker adnto get it over with, I changed the settings for the bounce profile to the lowest settings possible. This essentially stopped retrying any failed send requests and immediately sent notifications to users with failed requests. This allowed the process to complete in about 2 hours. After the DHA was complete I was able to set the bounce profile to it's defaults and it was business as usual.
Still I have an issue with being blacklisted, but we are on only 1 blacklist so it is not critical. Since this is our first blacklist the wait time is about 48 hours. The down side is that the host SORBS-SPAM is not very responsive so I am guessing I will have to wait the whole time. Also, you can optionally release the blacklist yourself, but it has to come from the same IP address that was blacklisted, and this is not possible from the IronPort.
