- May 6, 2013Robert Lopez:
> Let me try again. I am assuming the link between a line in thePlease describe what is not clear about the following text:
> dndsbl_reply file and the main.cf file is only a label and it could be
> Is that a wrong assumption?
postscreen_dnsbl_reply_map (default: empty)
A mapping from actual DNSBL domain name which includes a secret pass-
word, to the DNSBL domain name that postscreen will reply with when it
rejects mail. When no mapping is found, the actual DNSBL domain will
For maximal stability it is best to use a file that is read into memory
such as pcre:, regexp: or texthash: (texthash: is similar to hash:,
except a) there is no need to run postmap(1) before the file can be
used, and b) texthash: does not detect changes after the file is read).
postscreen_dnsbl_reply_map = texthash:/etc/postfix/dnsbl_reply
This feature is available in Postfix 2.8.
Once you set up your postscreen_dnsbl_reply_map, you can query it
to ensure that it works as expected. Using the above example,
postmap -q secret.zen.spamhaus.org texthash:/etc/postfix/dnsbl_reply
should produce "zen.spamhaus.org" as output.
Thanks for helping to improve Postfix.
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