CDO.Message 和 System.Net.Mail 之间的区别
我已经使用 System.Net.Mail 通过 C#.net 应用程序实现了电子邮件群发系统。
以前,该系统是使用 CDO.Message 通过 VB 脚本实现的。
在我部署新系统并运行它进行爆破(发送电子邮件)后,我在生产 SMTP 服务器中遇到了异常(处理消息数超出每个连接的最大数量时出错)。
我知道这个错误是由于 SMTP 服务器设置造成的,但我的客户认为以前的 VB 脚本可以使用此 SMTP 服务器设置。
这就是为什么我想知道CDO.Message和System.Net.Mail之间的区别,例如是否有连接会话的控制等
请给我建议。谢谢。
I've implemented email blasting system with C#.net application using System.Net.Mail.
Previously, this system was implemented with VB Script using CDO.Message.
After I deployed my new system and run it for blasting(sending emails), I got the exception(Error in processing Number of messages exceeds maximum per connection) in production SMTP Server.
I know that this error is because of the SMTP server setting, but my client argues that the previous VB script can work with this SMTP Server setting.
That's why I want to know the difference between CDO.Message and System.Net.Mail, for instance, is there control of connection sessions, etc.
Please kindly advise me. Thanks.
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“CDO”是用于发送邮件的 COM 实现,而“System.Net.Mail”是使用 SMTP(通常是到另一个邮件服务器的中继)发送邮件的托管方式。您可能会发现同时发送大量电子邮件会受到限制,因为服务器只能处理这么多电子邮件。并发请求 - 类似于高速公路在同一时间只能处理有限数量的汽车。
'CDO' is a COM implementation for sending mail whereas 'System.Net.Mail' is a managed way to send mail using SMTP (which is typically a relay to another mail server). You are likely to find limitations in sending a larger number of concurrent emails with both as a server can only handle so many. Concurrent requests - similar to a highway only being able to handle a finite number of cars at any one time.