On Mon, Apr 20, 2015 at 06:51:41PM -0500, SH Development wrote:
> I'm trying to figure out why I'm receiving error messages to my postmaster
> account for non-existent user mail attempts.
>
> From what I'm reading, notify_classes (which I do not have a configuration
> directive for) default is resource, software. Neither of which seems to
> me to apply to a:
>
> RCPT TO:<he...@mydomain.com>
> 451 4.3.0 <he...@mydomain.com>: Temporary lookup failure
There's the "resource" problem, more details in your server logs.
Your server is unable to perform some configured table lookup.
--
Viktor.
