test if smtpctl can connect to /run/smtpd.sock
    
    A recent opensmtpd testing revealed that SELinux prevents the smtpctl
    processes from connecting to the /run/smtpd.sock socket. The TC
    reproduces the situation.
    
    In order to support the basic function of sending emails via opensmtpd
    means, I believe that SELinux policy should allow the above-mentioned
    action. The TC looks for appropriate policy rules and file context
    patterns.
    
    The TC covers BZ#2246115.