I found a very strange issue with Email Filters, when it received email sent to it from anyone sending from admin@ or postmaster@
If an email filter is created to forward ALL mail to another address, if you send it from email@example.com (and by anything I mean anything in here, gobbledegook.co.uk), then it goes into the inbox and is not filtered, but if its not admin@anything (even admin1@) , it forwards OK. This also occurs for postmaster, but not hostmaster etc.
This is very strange and people are potentially not getting any emails when sent rom admin@.
Is this is a bug? Or a setting I can fix on the server?
I tried it on two separate mail servers, so for two different domains, and same issue.
Aliases forward OK, so its only email account filters.