I am able to observe a very strange behaviour:
User A wants to copy a mail to a shared mailbox of user B. This works like a charme if the quota of user A is lower than the used space of user B. But is the used space of user B higher than the quota size of User A, “User A” is not longer able to copy the message to the shared folder of user B. His IMAP Client says something like “NO OVERQUOTA”.
# doveadm quota get -u userA Quota name Type Value Limit % User quota STORAGE 20085 25600 78 User quota MESSAGE 68 - 0 # doveadm quota get -u userB Quota name Type Value Limit % User quota STORAGE 39963 122880 32 User quota MESSAGE 160 - 0
The quota’s are configured in UMC -> Users -> Select User -> [Advanced settings] -> Mail -> Mail quota
The situation is reproducible with Open-Xchange as IMAP Client and with any other Clients like Thunderbrid. So I think the origin is Doveoct. Are there any other users out there experience this behavior? Are the any solutions?