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I've got a SmarterMail server that is acting as a gateway to another SmarterMail server. The gateway server simply domain forwards everything for a specific list of domains onto the main server (after greylisting, etc.). Some mail is being rejected with the following message in the SMTPlog: - rsp: 552...

I know you can limit the number of outgoing emails on a domain level per session. But is it possible to set a monthly or daily restriction on the total number of messages sent in terms of either quantity or KB per domain?