Eudora uses Internet Explorer to assist in the viewing of html messages if the 'Use Microsoft Viewer' option is enabled. Eudora also has a 'allow executables in HTML content' option, which the documentation recommends be disabled for securithy reasons. It is possible for an attacker to excecute arbitrary code on a remote system even if 'allow executables in HTML content' is disabled, if the 'Use Microsoft viewer' option is enabled.
Eudora uses Internet Explorer to assist in the viewing of html messages if the 'Use Microsoft Viewer' option is enabled. Eudora also has a 'allow executables in HTML content' option, which the documentation recommends be disabled for securithy reasons. It is possible for an attacker to excecute arbitrary code on a remote system even if 'allow executables in HTML content' is disabled, if the 'Use Microsoft viewer' option is enabled.