hosts_allow: allow +karma senders +3 concurrents
hosts_allow: allow +karma senders +3 concurrents

this is really useful if you set max-per-ip to <= 3.

salvis/qpsmtpd,msimerson/qpsmtpd,priyadi/qpsmtpd,smtpd/qpsmtpd,smtpd/qpsmtpd,sieutruc/qpsmtpd,sieutruc/qpsmtpd,salvis/qpsmtpd,priyadi/qpsmtpd,priyadi/qpsmtpd,msimerson/qpsmtpd,sieutruc/qpsmtpd