On 12/23/2016 03:34 PM, Dominic Raferd wrote:
> On 23/12/2016 14:27, John Fawcett wrote:
>> On 12/23/2016 03:13 PM, Dominic Raferd wrote:
>>> Obviously I am being thick but can someone explain why this does not
>>> work as I would expect. Basically email addresses are not matching
>>> against domain names in a hashed database:
>>>
>>> $ postconf|grep "^parent_domain_matches_subdomains.*smtpd_access_maps"
>>>> /dev/null && echo "domain.tld should match as the domain part of an
>>> email address"
>>> domain.tld should match as the domain part of an email address
>>> $ # Do a lookup against a full mail address
>>> $ echo j...@mydomain.org REJECT >/tmp/test; postmap /tmp/test
>>> $ postmap -q j...@mydomain.org /tmp/test >/dev/null && echo Success ||
>>> echo Failure
>>> Success
>>> $ # Do a lookup against a domain address
>>> $ echo mydomain.org REJECT >/tmp/test; postmap /tmp/test
>>> $ postmap -q j...@mydomain.org /tmp/test >/dev/null && echo Success ||
>>> echo Failure
>>> Failure
>> postmap only tests the specific key you are querying. If you want to
>> check if the domain will match you should query for that.
>>
>> postmap -q mydomain.org /tmp/test
>>
>> Where postfix needs to check for multiple keys in the access map it will
>> make multiple lookups. That functionality is not in postmap.
>>
>> John
>>
> Thanks John I hadn't realised that. I understand now. It does make
> postmap -q rather less useful though.

To be fair maps are general features used from various places within
postfix. Each place a map is used can have multiple lookups taking place
depending on the context. I think it would be a big job (and perhaps
even an impossible one) to replicate that logic into postmap.

John

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