+ if ($reply_id) {
+ sqimap_mailbox_select ($imap_stream, $mailbox);
+ sqimap_messages_flag ($imap_stream, $reply_id, $reply_id, "Answered");
+
+ // Insert In-Reply-To and References headers if the
+ // message-id of the message we reply to is set (longer than "<>")
+ // The References header should really be the old Referenced header
+ // with the message ID appended, but it can be only the message ID too.
+ $hdr = sqimap_get_small_header ($imap_stream, $reply_id, false);
+ if(strlen($hdr->message_id) > 2) {
+ $more_headers["In-Reply-To"] = $hdr->message_id;
+ $more_headers["References"] = $hdr->message_id;
+ }
+ }
+