Are you sure about torbirdy? You do not think that creating an email account
in thunderbird an entering the onionmail account data, provides a tor
connections to the onionmail server?
http://5dgg7y5viysvvrxf.onion/
My reading is, that it is an email server that uses tor to provide anonymity.
Do you have to use an email client? There is no tor browser web gui for
writing and reading emails?
I have created an account. Why cannot the server provide imap, but only pop?
If
I think you should use this OnionMail account with IceDove and TorBirdy
addon.
You'll have to start Tor service before with the RootTerminal by using this
command (check if Tor is installed in synaptic)
# sudo service tor start
to stop it :
# sudo service tor stop
You can check if this