Hello,

Thanks for the clarifications

plugin { quota = maildir:User quota quota_rule = *:storage=1G quota_grace = 10%% # 10% is the default quota_status_success = DUNNO quota_status_nouser = DUNNO quota_status_overquota = "552 5.2.2 Mailbox is full" }

The above configurations is my default for all users. but my mail system is using mbox format and not maildir.... so what should i change in the above configuration to use mbox INSTEAD of maildir ??

Also for the quota paramater, can i use (myquota = maildir:User quota) INSTEAD of (quota = maildir:User quota) ?? or it must "QUOTA =" and not any thing else to work ?

same for quota_rule parameter, should i add (_rule) after quota to work ??? can i add for example qouta_restriction INSTEAD of quota_rules ?? i am asking this question to better understand how dovecot work..

also last question when i use the following command to get quota for existing system user called michael , it gives me an error as follow, so why dovecot is not able to get the quota for the system users?

doveadm quota get -u michael doveadm(michael): Fatal: User doesn't exist

Many thanks

1. Verify the user's mailbox is over or under quota in alignment with your expectations
   • doveadm quota -u $RECIPIENT
2. Test that the quota service provides the response you expect it to
   • echo "recipient=$RECIPIENT" | nc -q1 localhost 12340 On 09/26/2015 01:40 AM, Michael Peter wrote:

...

Incase user is underquota, then the email is returned back to postfix for processing and delivering email to user mbox, incase user has no sufficient quota then dovecot will inform postfix to reject email. Please confirm if what i mentioned above is correct and that i understand correctly how dove-cot policy works with postfix. Your understanding is mor or less correct, except that postfix never passes the email itself to dovecot when performing the quota check. It simply sends a message to the quota policy service asking if the recipient is over quota. If the recipient is over quota, dovecot provides postfix with the response configured in quota_status_overquota. If the recipient is under quota, dovecot provides postfix with the response configured in quota_status_success. If dovecot does not know the user, it provides postfix with the response configured in quota_status_nouser. Kindly check my configuration below and advise the missing parts to add... I don't see anything wrong with your configuration on first appraisal, but if it isn't working I would recommend you perform the following troubleshooting steps.

...

Hello, I am trying to use dovecot quota service for postfix in order set quota for some users. i configure postfix policy service to ask dovecot if user quota is sufficient to accept the email or not. (dovecot in this case acts only as policy server to postfix as it only ACCEPT/REJECT email according to user quota, but it is not used to deliver email , because postfix will deliver the email to user mailbox) Incase user is underquota, then the email is returned back to postfix for processing and delivering email to user mbox, incase user has no sufficient quota then dovecot will inform postfix to reject email. Please confirm if what i mentioned above is correct and that i understand correctly how dove-cot policy works with postfix. Kindly check my configuration below and advise the missing parts to add... plugin { quota_rule = *:storage=1G quota_grace = 10%% # 10% is the default quota_status_success = DUNNO quota_status_nouser = DUNNO quota_status_overquota = "552 5.2.2 Mailbox is full" ... } The above configurations is for all users which is not override by quota rules in userdb's extra fields in my password file below. Is the above configuration missing some thing ? i am using mbox format for emails storage. do you i have to add (quota= SOMETHING) before (quote_rule = *:storage=1G) and what to do add to make dovecot support mbox quota? smtpd_recipient_restrictions = check_policy_service inet:SERVER-HIDDEN-FOR-SECRUITY.com:12340 service quota-status { executable = quota-status -p postfix inet_listener { port = 12340 } client_limit = 1 } now in order to configure dovecot specific quota for user named (user1) i use passwd-file as follow user1:{plain}pass3:1002:1002::/home/user1::userdb_mail=mbox:~/mymail:INBOX=/var/mail/user1 userdb_quota_rule=*:bytes=300M All other users except users1 should have 1GB storage according to this configuration. which user1 will only have 300MB Please advise what is my configuration is missing and if i need to add any thing to run without issues. Many thanks Michael Peter