IMAP4 Service The IMAP4 service ships with Exchange Server 2003 and enables Internet users to access their mailboxes and public folders through the Internet Mail Access Protocol version 4.

• IMAP4服务:IMAP4服务包含在Exchange Server 2003中,它使Internet用户可以通过Internet邮件访问协议版本4来访问其邮箱和公用文件夹。