First-class email

Hi all! The school board I work for uses First-Class email
For our work email. I have been trying to figure out a way to get it on my phone. I have loaded the app off of Snap but it doesn't work. I have talked to the board IT department and they don't support blackberry anymore. Ideally I want to be able to email directly off of blackberry hub, rather than logging into an app. Right now though I would be happy to at least have the app!
If anybody has any tips that would be fantastic!

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