Ubuntu Linux allows for easily changing the user interface language to suit your preference. However, once done, the Mozilla Thunderbird email client unfortunately (in my case) follows along, making Email reply headers switch from this:
-------- Original Message -------- From: firstname.lastname@example.org Sent: Thursday, December 16, 2010 9:33 AM To: email@example.com Subject: Good morning!
...to this (in the case of German):
-----Ursprüngliche Nachricht----- Von: firstname.lastname@example.org Gesendet: Donnerstag, 16. Dezember 2010 09:33 An: email@example.com Betreff: Good morning!
Also, responses change from "Re: " in the subject header to "AW: " (Antwort, answer) causing many/most email clients to be unable to sort the replies correctly (English Thunderbird will group only "Re: " prefaced replies under the main message while treating the "AW: " responses as separate threads.)
You can force Thunderbird to use English (or any other supported language) while keeping the rest of your operating system under a different language by doing the following: