Ubuntu – Thunderbird stops sending email


I am using Ubuntu 12.04 LTS and Thunderbird 14
I have configured correctly all accounts using common Local folders
I send and receive correctly emails.
Suddenly, usually 4-5 hours after I switch the pc on, I can not send email but receive only.
Other information is that it is a dual boot pc with Vista and both OS are using same profile folder.

Best Answer

The problem I found out is generated every time dmesg.log is updated. Solution is to reset wireless connection. It is generally not only Thunderbird but sending out network connection problem.