see if removing Mail::SPF makes Travis happy
see if removing Mail::SPF makes Travis happy

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