fixed spelling error, added spf code to notes
fixed spelling error, added spf code to notes

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