These messages uses to contain different data: when they will return, mobile numbers…
Some of them include the point of contacts you need in case you need to perform some activity related to the person you have sent the e-mail.
You can spend a year trying to understand the way that some teams really work, how the different activities are shared obtaining nothing as result.
Summer arrives, those “stoppers” go on holidays and let the “out of scope” full of interesting information.
Funny, isn’t it?