Option to define:

emailParameterMode	Used to choose the operating mode of emails. If <Option value> is set to 0, the functions for email management use the "wininet" module of Windows for the IMAP, POP3 and SMTP protocols in SSL mode (optionSSL constant) or in STARTTLS mode (emailOptionSecuredTLS constant). This mode corresponds to the default operating mode of functions for email management. If <Option value> is set to 1, the functions for email management use an implementation that supports the multi-platform. Therefore, the email management is the same for your Windows, Linux and mobile platforms (Android/iOS).
Versions 25 and later emailParameterHTML New in version 25 emailParameterHTML emailParameterHTML	When reading mails from a POP or IMAP server, the HTML part consists of a header and the HTML content itself. The charset that indicates the character encoding (UTF-8, ISO 8859-1, ISO-xxxx, etc.) can be in either or both of these parts. If <Option value> is set to 0 (default value), the email functions will only use the charset specified in the email header to handle the HTML content. If <Option value> is set to 1, the email functions will use the charset specified in the email header to handle the HTML content, if no charset has been specified in the HTML part itself. In some cases, this avoids display errors on accented and special characters.

New value of option.