From: Wietse Venema (no email)
Date: Sat Jun 01 2002 - 14:01:37 EDT
What problem are we trying to solve by not advertising ETRN?
The VRFY command can be turned off because some spammers use VRFY
to probe for mail addresses.
What information does ETRN give away?
Wietse
luna:
> hi all-
>
> i have a question regarding ETRN. i'm aware of smtpd_etrn_restrictions,
> and am currently using that parameter to reject all ETRN requests.
> however, what i would like to do is not advertise the command following
> EHLO - similar to the disable_vrfy_command parameter.
>
> since the current documentation makes no mention of this parameter (that i
> have been able to find) i'll assume that it is not possible (wietse says:
> "if the documentation doesn't say you can do it, then you can't do it.."
> :?) )
>
> i'm hoping that this parameter might be considered for a future release.
>
> thanks
> -ben
>
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