优化 - ASP.NET应用程序中的电子邮件

Quick question. Just want to confirm that a network call such as to a SMTP server doesn't take up any CPU usage. It only blocks one of my request handling threads and the user who triggered the email has to wait while my webserver is done with the SMTP call. If i send the email in another thread and let the user thread go on, then I get rid of this problem. Right???Quick question. Just want to confirm that a net