On Mon, Dec 28, 2009 at 12:32:51PM -0500, Terry Carmen wrote:
> On 12/27/2009 11:28 PM, Satish Kumar P wrote:
>> 1. "unknown user" (this is really strange, if the user were unknown,
>> postfix/smtpd would have rejected the recipient at SMTP connection
>> itself)
>> 2. "mail forwarding loop" for x...@domain.com (though we are pretty
>> sure that the mail came to this server once - i mean not looping b/w
>> the servers)
>>
>> In all the cases we observed, postfix/local fails to find the entry in
>> alias tables. This server handles almost 70000 emails daily and works
>> perfectly except the bugging issue I mentioned above. Few details
>> regarding our environment are as follows:
>
> Is the alias table generated dynamically? It is possible that it's not
> readable (still being written) at the time the lookup happens?
Not much point speculating without logs. It should also be noted that
the most frequent explanation for "disappearing" local users is lookup
timeouts in remote nsswitch.conf mechanisms, and the C-library lying
by returning "no such user".
--
Viktor.
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