GMAIL account on mail - CCI problems

hi,

*ON MAIL 4.3*
i've typed an email to many people with CCI mode with my gmail address (configured on Mail 4.3)
Once sent, i went to sent messages folder and didn't see CCi recipients...
I've checks with preference/view options CCi headers, or in View Menu > Message Long version headers. None of these options allow to display CCI recipients...

*ON INTERNET BROWSER / GMAIL INTERFACE*
i've made a test with a new email from Gmail interface, including one of my other email addresses in CCi and sent it. When I look into Mail, sent messages, this time CCi recipients appear...

If i do the same test with a hotmail account it works on Mail & Hotmail interface...

Any idea and solution?
thanks by advance