Posted by shimmyshack on 02/20/07 06:16

On 19 Feb, 08:51, "J.O. Aho" <u...@example.net> wrote:
> David Quinton wrote:
> > That IP may be that of your Server, or you hosting company may well
> > send all outgoing server-originated mail through Gateway(s). That IP
> > may be blocked.
>
> Most commonly dynamic ip addresses are blocked on quite many mail servers, the
> same with ip-addresses that don't resolve to a valid ip-name.
>
> > But you should have had a bounce message from Hotmail...
>
> Hotmail seldom does bounces, specially not if your mail has been detected as
> spam, those detected in the first level are quietly piped to /dev/null.
>
> --
>
> //Aho

try using authenticated smtp, or set reverse DNS entry for your domain
name.

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