Problem with E-mail object

When a mail is sent via the E-mail object, I can see when receiving it in Outlook that all FROM/TO/CC fields are duplicated.

Something like that :
From : sender@xxxx.com; sender@xxxx.com
TO : recipient@xx.com; recipient@xx.com

Trying to remove duplicates with the action "remove recipiant" before sending leads to a crash. Any help is appreciated. At least I'd like to know if it happens only to me (there is a SMTP example in the example folder that you can try).

Doesn't happen with me Brovic. Could it be your SMTP server?

Thanks a lot for having tried Steven ! There were crossposted mails that lead me to think the example was wrong too, while it was only mine. I finally discovered what was wrong, I just had to uncheck "threaded version" and now all is OK !
Thank you again.