fix reported problem with VBounce plugin, caused by bug 5331; certain MIME structures are unparseable using Message::find_parts(), so just use the slower but more reliable full message rendering instead
fix reported problem with VBounce plugin, caused by bug 5331; certain MIME structures are unparseable using Message::find_parts(), so just use the slower but more reliable full message rendering instead

git-svn-id: e9fe9b84e32fc5e57b7d09c40cd78b14ea28ed71@507521 13f79535-47bb-0310-9956-ffa450edef68

apache/spamassassin,apache/spamassassin,apache/spamassassin,apache/spamassassin,apache/spamassassin