No! A mailbox could never go over quota if such mails would be rejected! If you send one email being 800% over quota cyrus will deliver the mail and all next mails to the same mailbox now being over quota will be handled appropriate to your imapd.conf settings!
So I'd have to block something like that on the postfix site already then ? Is there a way to do so? I just know of a general limit ... but not on a user base!
From imapd.conf manpage:
lmtp_over_quota_perm_failure: 0 If enabled, lmtpd returns a permanent failure code when a user's mailbox is over quota. By default, the failure is temporary, causing the MTA to queue the mes- sage and retry later.
quotawarn: 90 The percent of quota utilization over which the server generates warnings.
Some email clients show a dialogbox (like Outlook) where others do not (like Mozilla-Mail). That you did not get a warning right now can be caused of your MTA queueing the message caused by lmtp_over_quota_perm_failure not being set!
Okay I sent the message directly from the same server. So from the localhost, maybe I should have sent it from another host.
Kind Regards,
Markus
