|Understanding rcpthosts and locals|
|Tuesday, 07 April 2009 00:43|
rcpthosts - domains that we accept mail for - mostly used for vpopmail virtual domains that reside in /home/vpopmail/domains
If rcpthosts does not exist, you are an open relay. If it exists and is empty and there is no "morercpthosts.cdb" file as well, then your server will reject all incoming mail.