[expert] Mailboxes size on Postfix

[Jorge Giménez]

Hi.   The mail machine of my job is a LM 8.0 box with Postfix and I want to change the size of mailboxes . I try to search Postfix documentation but I can't find how to do it. Can anyone tell me what is the configuration file and the parameter to change this. I have webmin 1.0.30 installed on the machine but I can't find it either.   Thanks in advance,                                    Jorge Giménez