On Sat, 02 Jan 2010 20:03:46 Drew Whittle wrote:
From their webpage;
421 Message from (x.x.x.x) temporarily deferred - 4.16.50 Last Updated: December 08, 2009
If youre seeing the error "421 Message from x.x.x.x temporarily deferred - 4.16.50", in your SMTP logs (where x.x.x.x is your IP address), this indicates that emails from your mail server have been generating substantial complaints from Yahoo! Mail users.
It is not possible that this MX could be generating any complaints from Yahoo or Xtra users. I deliberately ran a test against a server that is only used for my personal email. As for the remainder of your post - the status message did not refer to 'complaints' as the list of status messages on the page did, so with both of these points taken into account I do not feel it's reasonable for me to assume this is the issue, or that it is personal to our network. Thanks. Michael