|Component||Checks & Agents|
|Title||postfix_mailq: Also discover the default queue which can exist even if multiple instances are configured|
|Checkmk Edition||Checkmk Raw Edition (CRE)|
|Compatibility||Compatible - no manual interaction needed|
If multiple instances are configured the postfix mail queue check also discovers the default queue which was missing before. The default queue name is (empty) for non-multi and multi Postfix environments.