Author: Peter Bowyer Date: To: Exim, Users Subject: Re: [exim] MTAs not trying all MX records?
On 09/11/06, Marc Perkel <marc@???> wrote: > I was just wondering if there were known MTAs that don't try all MX
> records but only the lowest? Is this something that's common?
>
> Here's the problem. On my lowest MX I do a defer on a lot of things that
> are suspicious expecing legitimate email to be delivered to the second
> MX which will accept it. But I'm getting some complaints that mail times
> out and after X days is returned. It is as if the sending server only
> tries the lowest MX.
>
> So - are there MTAs that are known to not follow the standard rules?
I think you just found one. I'd be very careful with this as you're
relying on certain behaviour from partner MTAs over which you've no
control.
