系統找不到 richard.pu@tencent.com.hk 或該地址無法接收電子郵件,因此未傳送你的電子郵件。遠端伺服器的回應如下:
550 Mailbox unavailable or access denied
<ferheenmahomed@hkex.com.hk>: Recipient address rejected: User unknown in relay recipient table
The original message was received at Wed, 4 Nov 2020 GMT from
----- The following addresses had permanent fatal errors -----
<Richard.Ashooh@bis.doc.gov>
(reason: 550 5.7.1 Message rejected as spam by Content Filtering.)
----- Transcript of session follows -----
... while talking to [192.30.203.37]:
>>> DATA
<<< 550 5.7.1 Message rejected as spam by Content Filtering.
554 5.0.0 Service unavailable