Hello Dawsden,
Welcome to the Community and thank you for getting in touch.
I am very sorry to hear you have been experiencing issues with your emails becoming unavailable.
This issue sounds like it could be related to the mailbox needing to be enabled which is something I can help with.
In order for me to assist further, I will just need to pop you over a private message to grab a few more details. This message will be available via the purple envelope on the top right of this page.
Speak soon
Nat