Does the Fourth Amendment protect individuals who send or receive stored electronic communications (emails) as provided under federal law through the Stored Communications Act, 18 U.S.C. § 2701, et seq.?

Was the sender's Fourth Amendment right violated when law enforcement warrantlessly viewed the sender's private electronic communications (emails), while stored in the recipient's account on a commercial internet service provider's servers, without consent from either the sender or recipient, in violation of federal law?

Does the Fourth Amendment protect individuals who send or receive stored electronic communications (emails) as provided under federal law through the Stored Communications Act, 18 U.S.C. § 2701, et seq.?