The Torbutton extension installed in amnesia being incompatible with Icedove (Thunderbird), the real IP address of the computer is disclosed to the SMTP relay that is used to send email.
When using Icedove to send email, the computer's real IP address is disclosed to the SMTP relay, that usually writes it down to a `Received:` header inside outgoing email. This private information is therefore disclosed to:
When using a NAT-ed Internet connection, the disclosed IP is a local network one (e.g. 192.168.1.42), which usually does not reveal too much. On the other hand, when connecting directly to the Internet, e.g. using a PPP or DSL modem and no router, the disclosed IP truly reveals the location of the amnesia user.
Upgrade to [[amnesia 0.4.1|news/version_0.4.1]], that ships with Claws Mail instead of Icedove, **and** set the following preferences in `~/.claws-mail/accountrc` for every account: