Tham khảo bài thuyết trình module 6: integrating isa server 2004 and microsoft exchange server, công nghệ thông tin, quản trị mạng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Module 6: Integrating ISA Server 2004 and Microsoft Exchange Server Overview Issues in E-Mail Security Configuring ISA Server to Secure SMTP Traffic Configuring ISA Server to Secure Web Client Connections Configuring ISA Server to Secure Client Connections Lesson: Issues in E-Mail Security E-Mail Security Threats Overview E-Mail Access Using Web Clients E-Mail Access Using Outlook Clients E-Mail Access Using POP3, IMAP4, and NNTP Clients SMTP Protocol-Level Exploits Unwanted and Malicious E-Mail How ISA Server 2004 Secures Exchange Server E-Mail Security Threats Overview Ensuring the security of e-mail includes: Ensuring that all e-mail client connections to the e-mail server are secure Protecting the e-mail servers from SMTP exploits Preventing unwanted or malicious e-mails from entering the organization’s network E-Mail Access Using Web Clients Outlook Mobile Access XHTML, cHTML, HTML ActiveSync Enabled Mobile Devices ISA Server Outlook Web Access Exchange Front-End Server Exchange | Module 6: Integrating ISA Server 2004 and Microsoft Exchange Server Overview Issues in E-Mail Security Configuring ISA Server to Secure SMTP Traffic Configuring ISA Server to Secure Web Client Connections Configuring ISA Server to Secure Client Connections Lesson: Issues in E-Mail Security E-Mail Security Threats Overview E-Mail Access Using Web Clients E-Mail Access Using Outlook Clients E-Mail Access Using POP3, IMAP4, and NNTP Clients SMTP Protocol-Level Exploits Unwanted and Malicious E-Mail How ISA Server 2004 Secures Exchange Server E-Mail Security Threats Overview Ensuring the security of e-mail includes: Ensuring that all e-mail client connections to the e-mail server are secure Protecting the e-mail servers from SMTP exploits Preventing unwanted or malicious e-mails from entering the organization’s network E-Mail Access Using Web Clients Outlook Mobile Access XHTML, cHTML, HTML ActiveSync Enabled Mobile Devices ISA Server Outlook Web Access Exchange Front-End Server Exchange Back-End Servers Wireless Network Outlook RPC Connections Outlook RPC over HTTP Connections E-Mail Access Using Outlook Clients Port 135 and dynamic ports Port 80 or 443 Exchange Back-End Servers Exchange Front-End Server ISA Server POP3 Connections IMAP4 Connections E-Mail Access Using POP3, IMAP4, and NNTP Clients Port 110 or 995 Port 25 Port 143 or 993 Port 25 Exchange Back-End Servers Exchange Front-End Server ISA Server SMTP Protocol-Level Exploits SMTP servers can be vulnerable to: Buffer overflow attacks when SMTP commands are sent with more than expected data, causing memory buffer overflows Mail relay attacks when an SMTP server is used to forward unwanted e-mail to Internet recipients SMTP command attacks where SMTP commands are used to compromise the server or gain information about the server or recipients on the server Unwanted and Malicious E-Mail Unwanted e-mail is unsolicited commercial e-mail that: Consumes server and network resources Reduces user productivity and .
