yes you can.. i use gmail with msn and no issue
Did you know that you can use your Gmail email on Yahoo Messenger and Windows Live/MSN Messenger? No problem, if you didn’t. I’ll explain it here how you can do it. Trust me, this saves you two password to remember (if you have a different one for everything).
So first of all, you need to have a Gmail (or any other) address. I chose Gmail because it will make easy for the its users to access Google Talk, Yahoo Messenger and MSN Messenger all with one email. Then the next step requires you to sign up for Windows Live credentials. Most of the work is done here . After signing up you can easily login with your email on MSN Messenger. If you want all your contacts to be shifted to the new address, then read this on how you can import/export your contacts the easy way . Continue reading to see how you can use your email with Yahoo [COLOR=#0099ff! important][COLOR=#0099ff! important]Messenger[/COLOR][/COLOR].
Now as for the Yahoo Messenger, you can’t actually sign-in using that email of yours. But your friends can add you in their Yahoo! Messenger’s contact list (and even you can in your MSN Messenger!). This way you won’t even have to leave your MSN Messenger to see who’s online in your Yahoo’s contacts. You can even IM your Yahoo contacts from there. That’s a very nice thing I about MSN Messenger.