Hi Cloud128,
A warm welcome and thanks for posting on our community forums. Sorry yp hear that you're currently having difficulties sending and receiving your Blueyonder emails.
It seems from your post that we have already raised an IT ticket regarding this issue, so we can certainly check on the progress of this.
As you have already followed the amazing advice given from our valued member @coenoby, but this has not resolved the issue, we will need to investigate this further for you.
I will pop you over a private message, please click on the purple envelope to accept the chat.
Kind regards Jodi.