I have five email accounts connected to my thunderbird profile, two outlook, two gmail and one more obscure, all of them had correctly set-up outgoing servers and all had an identical error message of 'Sending of the message failed' with no further details. Every account can receive emails perfectly fine and only sending of emails (and saving drafts as the same message appears if I were to try and save a draft) appears to have been affected. I opened the browser console in an attempt to diagnose an issue, however I am simply not knowledgeable enough to understand what its telling me. I suspect a component was lost when I resized the partition, however a reinstall of thunderbird and a wipe of my profiles has not changed the issue and as such I am lost. Could someone more knowledgable than I please point me in the right direction before I reinstall ubuntu trying to fix this. Many thanks Hawk.