---
title: "Tweet #4486338117"
date: 2009-09-30 00:00:00 +00
tags: twitter
templateEngineOverride: njk,md
---

{% raw %}@danphilpott great paper. 550 code error leaks are nasty, breaking SMTP is nastier. Outsource the MX and ignore RFCs on MTA 550s.{% endraw %}