From bb5d7282855dd83ccdd211cb77d0776dce71468e Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Wed, 12 Dec 2012 08:54:33 +0100
Subject: Use also Envelope-To for identity selection (#1488553)

---
 program/steps/mail/compose.inc | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'program/steps/mail/compose.inc')

diff --git a/program/steps/mail/compose.inc b/program/steps/mail/compose.inc
index d181a72e6..d764f5289 100644
--- a/program/steps/mail/compose.inc
+++ b/program/steps/mail/compose.inc
@@ -455,6 +455,16 @@ function rcmail_identity_select($MESSAGE, $identities, $compose_mode)
     }
   }
 
+  // Fallback using Envelope-To
+  if ($from_idx === null && ($envelope_to = $MESSAGE->headers->others['envelope-to'])) {
+    foreach ($identities as $idx => $ident) {
+      if (in_array($ident['email_ascii'], (array)$envelope_to)) {
+        $from_idx = $idx;
+        break;
+      }
+    }
+  }
+
   return $identities[$from_idx !== null ? $from_idx : $default_identity];
 }
 
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