This is what I needed to do to make this work. Thanks for your help that guided me in the right direction.

cMessage = "Test réussi!"
cConv1 = STRCONV( cMessage, 1, 1036)
cConv2 = STRCONV( cConv1, 9, 1036)

So I had to convert my message to UTF-8


>>If you are perhaps you could help me with the following problem that I have.
>>
>>I can't send characters that have accents. àÀéÉ
>>
>>I contacted the author and he told me that that there is nothing that could explain that behavior.
>
>Denis,
>
>Did you try to convert the text of the message to Unicode by STRCONV(STRCONV(m.MessageBody, 1), 5)?