Nik Kostaras:
> Hi all,
>
> Postfix documentation mentions (for smtpd_discard_ehlo_keyword_address_maps):
>
> ?The tables are not searched by hostname for robustness reasons.?
>
> Is it possible to describe what these reasons are? (performance related?)
Ask the question: if DNS lookup does not work, even if only for a
brief time, would that result in the loss of mail?
The purpose of this feature is to prevent a server from announcing
a feature to an SMTP client, for example because it would result
in the loss of mail (a client has a problem with that feature).
What should happen:
a) Don't suppress keywords based on hostname, and risk losing mail.
b) Don't accept mail, to avoid loss of mail.
c) Something else?
Wietse
