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Is there a way to get user information not on your roster using smack?

I am trying to implement a fature that requires to know the presence status of the users out of your contact list or roster list. Is there a way or a feature in smack lib’s to achive this use case?

You need to be subscribed to these users’ presences. If so, you will receive Presence updates from them.

However, this is more a server issue. E.g. I think Openfire does not allow to be subscribed to a user without adding this user as a contact to its own roster. And if you send a subscription request to a user, Openfire will automatically add this user to your roster, even though you did not add it to your roster.