Hello All. Have a strange issue here. Not sure if it is the website or the app. We have a DL Vacations trip to Aruba in September. I keep getting emails from DL Vacations once a week about schedule changes to our flights. They are usually just a minute or two one way or another and make no difference to our plans. The thing that I am wondering about is that in the emails it says our flights to and from Aruba are on a 757. Funny thing is that the DL website and the App show us flying on a A321. We are in 2nd or 3rd row each way so it's not like there won't be space up front but would like to get a handle on what the actual aircraft will be. Anyone seen this before? TIA! Pics Below..

Email From DL Vacations:

App Screenshot: