I have a client that I am relaying mail for. They are running an MDaemon 9.05 server with dynamic screening turned on. What this does is after 3 unknown recipients it sends a 550 error to the sending host which is my exim box. Then for the next 10 minutes, whenever my exim box connects to the MDaemon server it gets sent a 550 error before the SMTP banner comes up.
My exim box then bounces that email because it has been given a 5xx error message. What I want to know is if my exim box is behaving correctly. I assume that it is because 5xx messages are permanent and 4xx are temporary. I have turned off dynamic screening and this problem is not occurring anymore, but I now have to explain to management types why the problem happened in the first place and I want to cover my back that exim is not at fault. Regards -John -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
