Can someone please tell me how i type a polish email address.
Come on, is this a joke? There no "polish email address" there are different email accounts hosts in the world and all their email look the same you've got 3 parts:
login - which is the name of whoever you want to send your email to. It doesn't have to be his real name, it can be a nickname
@ - at sign separates login name from the domain name.
hostname - hostname/domain name of the company that hosts email service.
domain code - a top level or second level domain code or a country domain code
adding all the ingredients you'll have:
In this case there's a possibility that the country domain code is ".pl".
I'm afraid nobody can guess your friend's email, and there's no magic involved in sending emails to one.