Wietse Venema via Postfix-users:
> Arnie T via Postfix-users:
> > main.cf:
> > var_SHDQS=xxxxxxxxxxx
> > postscreen_dnsbl_reply_map =
> > texthash:/etc/postfix/postscreen_dnsbl_reply_map
> >
> > cat /etc/postfix/postscreen_dnsbl_reply_map
> > ${var_SHDQS}.zen.dq.spamhaus.net=127.0.0.[2..11] 554
> > $rbl_class $rbl_what blocked using ZEN - see
> > https://www.spamhaus.org/query/ip/$client_address for details
>
> Caution: postscreen_dnsbl_reply_map is searched without the =address-filter.
> See my other mssage in this thread.
>
> Caution: ${foo} expansion happens only in main.cf or master.cf, and in
> features
> where this is explicitly promised such as rbl_reply_maps lookup results.
>
> If you must have ${foo} expansion in table lookup keys, you could
> use an inline:{...} table. But then you must quote the $ on the
> right-hand side:
>
> main.cf:
> var_SHDQS = xxxxxxxxxxx
> postscreen_dnsbl_reply_map = inline:{
> { ${var_SHDQS}.zen.dq.spamhaus.net 554 $$rbl_class $$rbl_what
> blocked u sing ZEN - see https://www.spamhaus.org/query/ip/$$client_address
> for details }
> { ... } }
This is a bad example, because postscreen_dnsbl_reply_map does not
expand $name in its lookup result. rbl_reply_maps does that.
Wietse
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