請教您 try 成功的解法是...?
小弟的話 .. 是 .. 右鍵 -> 翻譯成中文
他說看原文很頭痛,而且是用 try 的,我只是好奇他 try 的結果 
最後try的結果是把信任網段放到下面去…
smtpd_recipient_restrictions =
reject_unlisted_sender,
permit_sasl_authenticated,
reject_sender_login_mismatch,
reject_unauth_destination,
check_policy_service unix:private/policy-spf,
permit_mynetworks,
reject_invalid_hostname,
check_client_access hash:/etc/postfix/rbl_whitelist,
permit_auth_destination,
reject_unknown_sender_domain,
reject_non_fqdn_recipient,
reject_unauth_pipelining,
check_relay_domain reject