Smtp 后缀限制电子邮件和连接

我想在Postfix中使用批量发送模式逻辑，每个连接都有一个连接，但我尝试的方法没有奏效

以下是Telnet中的批量逻辑：

~ telnet example.com 25
~ ehlo example.com
~ mail from: username@example.com
**In this place i want to browse 10 mails then send data**
~ rcpt to: mailA@hotmail.com
250 recipient OK
~ rcpt to: mailB@hotmail.com  
250 recipient OK
~ rcpt to: mailC@hotmail.com
250 recipient OK
~ rcpt to: mailD@hotmail.com
250 recipient OK
~ rcpt to: mailE@hotmail.com
250 recipient OK
~ DATA
~ QUIT

这正是我想在Postfix中实现的