Thanks for the assistance. I am now using ISO-8859-15 (select "Latin 9 ISO" in Outlook). Unlike ISO-8859-1, ISO-8859-15 contains the euro symbol.
Selecting the option: 'Auto-Select encoding for outgoing messages' will change the encoding back to us-ascii if there are only ascii characters in the message. That explained what happened in the previous tests. See what Microsoft says: "Microsoft Outlook now automatically selects an optimal encoding for outgoing mail messages. This feature increases the likelihood that when you send a message with Outlook 2002, the receiver will see all the characters rendered properly, even if they run older e-mail programs. Outlook scans the entire text of the outgoing message to determine a minimal popular encoding for the message. Outlook selects an encoding that is capable of representing all the characters, and that is optimized so that the majority of the receiving e-mail programs can interpret and render the content properly." www.microsoft.com/office/ork/xp/four/outf03.htm#outf03_2 -- Terry Simpson Human Factors Consultant [EMAIL PROTECTED] www.connected-systems.com Phone: +44 7850 511794