Turning off comments on a task if it is an "out of office" email reply

We often get "out of office" email replies posted in our comments section of a task. I would like to be able to have those not post or the ability to delete them. I find that during this time of year especially we are getting a lot of them and it can be an issue for two reasons. It shows a lot of info in the comment section and it is just the email out of office response and if you have notifications on for updates - you get those too. I didn't know if there was a good way to manage those.