How to turn off suggesting gmail.com, yahoo.com or outlook.com after inputting an '@' into Samsung Keyboard

One UI7 - S25 Ultra

For work, I have a lot of different email address for my contacts that all come from different domains. For example JohnDoe @ CompanyA.com

I have set up some text shortcuts so that if I type JD@, it should fill the email address. I have the '@' in the shortcut because there are times when I don't need that and just need the first part of the email address, so having a 'JD' shortcut will add 'John Doe' instead of the whole email address.

The problem I have is that whenever the Samsung Keyboard sees an ampersand, it gives me gmail.com, yaho.com our outlook.com as predictions, instead of the text shortcut I want. How do I turn off those email suggestions? Long pressing those predictions does absolutely nothing. I don't want to turn off predictions in their entirety as they are very useful.