Sieve: Allow User Sieve scripts to access orcpt

crates/email/src/message/delivery.rs

@@ -30,6 +30,7 @@ pub struct IngestMessage {
 #[derive(Debug)]
 pub struct IngestRecipient {
     pub address: String,
+    pub orcpt: Option<String>,
     pub is_spam: bool,
 }
 

crates/email/src/sieve/ingest.rs

@@ -129,6 +129,9 @@ impl SieveScriptIngest for Server {
         // Set envelope
         instance.set_envelope(Envelope::From, envelope_from);
         instance.set_envelope(Envelope::To, envelope_to.address.as_str());
+        if let Some(orcpt) = &envelope_to.orcpt {
+            instance.set_envelope(Envelope::Orcpt, orcpt.as_str());
+        }
         instance.set_spam_status(if envelope_to.is_spam {
             SpamStatus::Spam
         } else {