diff -up evolution-2.10.3/mail/mail-session.c.server-message-double-free evolution-2.10.3/mail/mail-session.c
--- evolution-2.10.3/mail/mail-session.c.server-message-double-free	2008-03-25 10:01:13.000000000 -0400
+++ evolution-2.10.3/mail/mail-session.c	2008-03-25 10:01:25.000000000 -0400
@@ -389,10 +389,8 @@ alert_user(CamelSession *session, CamelS
 		mail_msg_unref (m);
 	}
 
-	if (m->ismain) {
-		user_message_free (m);
+	if (m->ismain)
 		mail_msg_unref (m);
-	}
 
 	return result;
 }