[asdsa5325]

What does "third party" in your question refer to? Are you referring to servers that route client-side encrypted messages from user to user?

[itakedrugs]

Yes, so that messages can reach a user even if the receiving and sending users are never online at the same time (a server could be another user/peer(s) that isn't part of the communication, so it could possibly still be called p2p?)