Mysql down & user unknown

Hello,

I look in the list and i don't find if a solution was found for return 
different error than unknown user when mysql connexion is down ?

Currently when maildrop can't connect to mysql he return "user unknown. 
Command output: Invalid user specified".
I would prefer message still in queue of postfix instead of send back to 
the sender (bounce).

Maybe a postfix param issue to maildrop ?

Regards,


--
Arnaud Pignard (apignard@xxxxxxxxxxx)
Frontier Online - Opérateur Internet




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