Re: [Exim] Reaction to rude 554 greeting

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Autor: James P. Roberts
Datum:  
To: Suresh Ramasubramanian, Florian Weimer
CC: exim-users
Betreff: Re: [Exim] Reaction to rude 554 greeting
<snip>
> > If, for example, I was blocking your IP in some way, and you tried to
> > get around my block by trying to deliver through a backup MX, your IP
> > would go straight into our firewall deny rules.
>
> Hmm, would you mind looking up the way SMTP is supposed to work? MTAs
> are expected to work this way. If no IP connection can be made to the
> first MX, other MXes should be tried. As a result, SMTP mail delivery
> is extremely robust, and certainly you don't want to change this.
>


But an IP connection WAS made to the first MX, and a 5xx response was made.
That is NOT the same as "no IP connection."

Jim Roberts
Punster Productions, Inc.