Question juridique clé
Whether the appeal against the non-entry decision was admissible under Art. 93 BGG.
Solution extraite
The appeal was inadmissible because no irreparable legal disadvantage was shown; any harm was only procedural delay.
Motifs extraits
If the sealing was timely and lawful, the prosecutor could file a new unsealing request; if not, it could use the e-mails without a judicial unsealing decision. Either way, no legal disadvantage resulted.