headers: assign zeroes to avoid undef errors
headers: assign zeroes to avoid undef errors

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