![发送邮件时报错：Error: Expected response code 354 but got code "503", with message "503 Bad sequence of commands [@sm190202]"](https://www.shuijingwanwq.com/wp-content/uploads/2025/06/1-11-720x192.jpg)
Error: Error: Expected Response Code 354 But Got Code “503”, with message “503 Bad Sequence of Commands[@sm190202]”
浏览量： 18 1. Error: Error: Expected Response Code 354 But Got Code “503”, with message “503 Bad Sequence of Commands”[@sm190202]” . As shown in Figure 1 2. SMTP rejects the preparation steps before the...
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