Shawn Fee: > Is there a fix for the "451 4.3.0 Error: queue file write error" yet? I > heard to increase the smtp_proxy_timeout = 600s in the main.cf file, but > then I heard that can run down your server.
You have a configuration error, and you need to look in the Postfix
mail logfile for details. Postfix will not reveal these details in
its reponses to SMTP clients.
Wietse
