Re: [exim] Retry on 550 errors

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Συντάκτης: Dave Lugo
Ημερομηνία:  
Προς: exim-users
Αντικείμενο: Re: [exim] Retry on 550 errors
On Tue, 5 Dec 2006, Marc Perkel wrote:
> >
> > Any MTA that allows an MX to decide whether or not a rcpt_to
> > domain should be accepted, is a DoS waiting to happen.
> >
>
> Unfortunately I have no control over the other end. But that's how some
> people set it up.
>


Then all you can do is make them aware of the possible gotchas
before cutover, so whatever they do is self-inflicted.

You can probably prequalify them too: make some test domain or
subdomain MX to the new customer's box(es), and then see if they
blindly accept stuff sent to the new domain.

-- 
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Dave Lugo   dlugo@???    LC Unit #260   TINLC
Have you hugged your firewall today?   No spam, thanks.
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Are you the police?  . . . .  No ma'am, we're sysadmins.