ESETS EFS requires root to scan

Add to sudoers:

postfix ALL=(ALL) NOPASSWD: /opt/eset/efs/bin/odscan
postfix ALL=(ALL) NOPASSWD: /opt/eset/efs/bin/lslog

where /opt/eset/efs/sbin/ is the real path to your esets scan binary
and postfix is the real Run As user for MailScanner