Login to the apache/iis server that is rejecting the DELETE command, and configure it to allow DELETEs
MWG wouldnt block a command unless you told it to (i.e. Command.Name equals DELETE).
The 405 is probably coming from the web server, not MWG.
Sure, thank you for that hint. To be clear it was not the webserver which denied that DELETE command but the web application firewall which is sitting in front of it. So I totally forgot about that
However it is usefull to know that mwg does not care about the http methods unless I tell it to do so.