答案1
总结：不可以。这不是 MTA 的工作。
假设外部地址向 gapps 域发送电子邮件。完整的电子邮件如下所示
From: [email protected]
To: [email protected]
Subject: Hello World
This is 'Hello world' version of email
因为[电子邮件保护]然后将其转发到 postfix.example.org[电子邮件保护]获取并阅读电子邮件。
现在[电子邮件保护]想要回复。IPhone 撰写电子邮件并发送到 postfix。以下是 postfix 会看到的示例回复[电子邮件保护]
From: [email protected]
To: [email protected]
Subject: Re: Hello World
On 7 Mar 2014, at 21.21, Someone <[email protected]> wrote:
> This is 'Hello world' version of email
Okay hello world. Your email was received :)
您可以在第二封电子邮件中看到没有任何迹象表明[电子邮件保护]已将电子邮件发送至 GAPPS.example.net。