From: Wietse Venema (no email)
Date: Sat Jun 01 2002 - 19:28:39 EDT
It breaks my heart. All these frustrated SMTP clients that are
being so deeply disappointed by this cruel Postfix server.
Wietse
luna:
> i should have been more specific with my answer to your initial question.
> technically speaking, the problem is that postfix is advertising a
> function that will never be succesfully executed (due to
> smtpd_etrn_restrictions = reject).
>
> example: a customer goes into a store that is advertising in the window
> "foo available here, for valid customers". the customer then asks an
> employee "hi - where can i find the foo?". the employee responds "we do
> not carry foo here." the customer then says "but it says in the window
> that you have foo, for valid customers. how do i become a valid
> customer?" the employee responds "it's not possible to become a valid
> customer. i know it says in the window that we carry foo. however we do
> not carry or stock foo here because there are no valid customers." the
> problem, simply put, is that it doesn't make sense.
>
> in a situation where smtpd_etrn_restrictions = reject is not the case, it
> could prove helpful from a troubleshooting standpoint to be able to modify
> a simple yes/no parameter to turn etrn on or off rather than having to
> modify a potentially multiline smtpd_etrn_restrictions parameter.
>
> that being said, i'll leave well enough alone.
>
> -ben
>
> On Sat, 1 Jun 2002, Wietse Venema wrote:
>
> >Code that solves no problem has no place in Postfix.
> >
> > Wietse
> >
> >luna:
> >> On Sat, 1 Jun 2002, Wietse Venema wrote:
> >>
> >> >What problem are we trying to solve by not advertising ETRN?
> >>
> >> nothing specific - just me being anal about my servers. :?)
> >>
> >> >The VRFY command can be turned off because some spammers use VRFY
> >> >to probe for mail addresses.
> >> >
> >> >What information does ETRN give away?
> >> >
> >> nothing. my thinking regarding this was simply "if you aren't going to do
> >> it, why advertise it..?" that's all.
> >>
> >> > Wietse
> >>
> >> -ben
> >>
> >> -
> >> To unsubscribe, send mail to with content
> >> (not subject): unsubscribe postfix-users
> >>
> >>
> >
> >
>
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