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public text v1 · immutablemain.cf:
smtpd_restriction_classes =
greylist
smtpd_recipient_restrictions =
check_sender_access pcre:/usr/local/etc/postfix/greylist.pcre
check_helo_access pcre:/usr/local/etc/postfix/greylist.pcre
check_client_access pcre:/usr/local/etc/postfix/greylist.pcre