Paris Geek and Mikeone:
First, I create and sent a message in the Webmail account, and when syncronize AquaMail, the sent message is not in the send folder.
Next, when verify the steps that Paris Geek tell me, the Sent folder in AquaMail is assigned to Sent in nauta account, BUT, the setting of "Save to Sent folder after sending" is not checked!!!
When I active that, all is ok...
Thanks a lot!
Latour.