Using Postie with GoDaddy

I’m trying to get Postie to work but the posts are not showing up so I’ve obviously got something set up wrong. I have an email set up specifically for this which uses my domain; it is a forwarding account, so it goes through to another email address to save having to log in to two separate accounts.

Any help would be appreciated.

https://www.ads-software.com/plugins/postie/