Filtering just for a variable Email ending

Hello I would like to make a simple verification process with a form (where after stored on successful verification further steps follow)

In a form the email is queried - which will end up in the same row as another email (from a database) -> can I build a view which filters only by the end of the email address?

Field 1 (submitted field)= @123.com

Field 2( which is in my databank) =@123.com

When field 1 ending of emailadress contains something of field 2 -> Success, enters new View

Maybe I think too complicated, would be glad about help.