I get this error when creating a new user USING POSTFIX ADMIN -<BR><BR> *****<BR>DEBUG INFORMATION:<BR>Invalid query: Duplicate entry ‘postmaster@hiringexpress.com ...
I've got half a dozen VMs (postfix on CentOS 5.5) that relay transactional emails from an application, to the tune of 5-6k messages per minute during peak hours. Looking at the vSphere performance ...