The EICAR test file was used to functionally test an antivirus system. As it stands today almost every AV system will flag EICAR as being a "test" virus. For more information on this historic test ...
I am using Virtualmin and have it set up to have Postfix scan incoming emails with ClamAV (using clamdscan) and delete any emails which contain a virus. However when I email myself the EICAR test ...