Re: [exim] Retry on 550 errors

Marc Perkel wrote:
> Picture this situation. I have several IPs to send mail on to forward to
> my customers. One transport uses IP address A and for some unknown
> reason A becomes accidentally blacklisted. So the customers hosting
> company starts bouncing all the email coming from my filtering service
> for that customer.
>
> But - if it could be passed on to another transport that sends on a
> different IP then it would perhaps go through.
>
> As I have said. Would never do this for all outgoing email but only in
> very targeted situations.
>

Avoid the issue in the first place. You should get your IPs whitelisted
at EVERY customer site. Either that, or get your customers to pick up
their mail directly from you. Actually, if they aren't in control of
their server, this is probably the best solution.

Ted.