From: mouss (moussnetoyen.net)
Date: Fri May 16 2008 - 03:18:09 CDT

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AlxFrag wrote:
> mouss wrote:
>> AlxFrag wrote:
>>> Hi,
>>>
>>> I've setup postfix as following:
>>>
>>> In main.cf:
>>>
>>> smtpd_recipient_restrictions=permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination
>>>
>>>
>>> smtpd_sender_login_maps=ldap:/etc/postfix/local_recipients.cf
>>>
>>> smtpd_sender_restrictions=permit_mynetworks,check_sender_access
>>> hash:/etc/postfix/block_senders,hash:/etc/postfix/my_domains,reject_authenticated_sender_login_mismatch
>>>
>>>
>>> smtpd_restriction_classes=verify_login
>>>
>>> verify_login=reject_sender_login_mismatch
>>>
>>> One of my users usermydomain owns another account to an external
>>> server userexternal_domain.
>>>
>>> In that domain he has placed an alias so as every mail sent to
>>> userexternal_domain is redirected to usermydomain.
>>>
>>> Whenever i try to send an email from my account postmastermydomain
>>> to userexternal_domain i get the following error:
>>>
>>> ----- The following addresses had permanent fatal errors -----
>>> <usermydomain>
>>> (reason: 553 5.7.1 <postmastermydomain>: Sender address
>>> rejected: not logged in)
>>
>>
>> what is the result of:
>>
>> # postmap -q postmastermydomain =ldap:/etc/postfix/local_recipients.cf
> The result is postmaster.
>
>

so postmasterexample.com is smtpd_sender_login_maps. it is probably
blocked by your verify_login restriction class, for example because you have

example.com verify_login

in your /etc/postfix/my_domains.

if you want postmasterexample.com to be able to send without
authentication, you need to except it. for example by adding
postmasterexample.com DUNNO

if the above is not true, please show the contents of my_domain and
block_senders.

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