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Cisco ASA Series CLI Configuration Guide
Chapter 1 Configuring Clientless SSL VPN
Configuring Remote Systems to Use Clientless SSL VPN Features
Note If you are using an IMAP client and you lose your mail server connection or are unable to make a new
connection, close the IMAP application and restart clientless SSL VPN.
Prerequisites
You must fulfill requirements for application access and other mail clients.
Restrictions
We have tested Microsoft Outlook Express versions 5.5 and 6.0.
Clientless SSL VPN should support other SMTPS, POP3S, or IMAP4S e-mail programs via port
forwarding, such as Lotus Notes and Eudora, but we have not verified them.
Using E-mail Via Web Access
The following e-mail applications are supported:
• Microsoft Outlook Web App to Exchange Server 2010.
OWA requires Internet Explorer 7 or later, or Firefox 3.01 or later.
• Microsoft Outlook Web Access to Exchange Server 2007, 2003, and 2000.
For best results, use OWA on Internet Explorer 8.x or later, or Firefox 8.x.
• Lotus iNotes
Prerequisites
You must have the web-based e-mail product installed.
Restrictions
Other web-based e-mail applications should also work, but we have not verified them.
Using E-mail Via E-mail Proxy
The following legacy e-mail applications are supported:
• Microsoft Outlook 2000 and 2002
• Microsoft Outlook Express 5.5 and 6.0
See the instructions and examples for your mail application in Using E-Mail over Clientless SSL VPN.
Prerequisites
• You must have the SSL-enabled mail application installed.
• Do not set the ASA SSL version to TLSv1 Only. Outlook and Outlook Express do not support TLS.
• You must have your mail application properly configured.
Restrictions
• Other SSL-enabled clients should also work, but we have not verified them.