When SMTP mail is set in the cshop background, error: Need RCPT command is returned.

In fact, the error is not because of this error. It is detected that the actual error returned by the email server is 501 mail from address must be same as Authorization User. Only because both 503 error: Need MAIL command and 503 error: Need RCPT command are returned, and ecshop only prompts the last row of error.

<Br> 220 smtp.qq.com esmtp qq Mail Server
<Br> 250-smtp.qq.com
250-pipelining
250-size 52428800
250-auth login Plain
250-auth = Login
250-mailcompress
250 8 bitmime
<Br> 334 vxnlcm5hbwu6
<Br> 334 ugfzc3dvcmq6
<Br> 235 authentication successful
<Br> 501 mail from address must be same as Authorization User
<Br> 503 error: Need MAIL command
<Br> 503 error: Need RCPT command

The simplest solution is to set,Enter the email sending account and email reply address as the same email..

Pre-FIX Configuration:

 

Error message:

The email is successfully sent after modification:

View the mail sender record:

Emails viewed by the recipient: