postfix limit exceeded although it's set to 0

Hi i have started having an issue with postfix (how long for, i do not know) I am trying to send an email with a 6mb attachment and it’s getting rejected with

[quote] The error that the other server returned was: 552 552 5.3.4 Error: message file too big (state 18). [/quote]

the mail log shows

postfix/smtpd[5177]: warning: CE0CA32C1FD: queue file size limit exceeded

The postfix has

mailbox_size_limit = 0

is there somewhere else that i can see a limit on emails? does virtualmin run through an sql db? will it affect the limit of emails?

thanks for any help


It looks like you have the mailbox size set to unlimited – however, in your case, you’d want to change the message size, rather than the mailbox size.