''<p>xhoopix [[#question-1345842|said]]</p>'' <blockquote>Hello, I would like to adjust Thunderbird so that it runs completely synchronously on two computers (all changes should be immediately visible on the other PC). I work with two workstations ( 1 x home / 1 x company ). If I now edit an email at home and, for example, assign the keyword "done" to it, this should also be immediately visible in the company. (Up to now these changes are not displayed or only on the computer where the change was made). Since this has not worked until now, my employee has worked twice several times. Can I change this in the settings so that it works? Thanks for the answer in advance Sincerely Matthias </blockquote> Complete synchronicity, such as an actively composed message appearing on multiple devices, is beyond the capability of TB, but such collaboration tools do exist. When you apply a keyword, do you mean that a tag is applied to a draft message? First, the tag would have to be defined on the other computers that have the same IMAP account and subscribe to the same Drafts folder, and the [http://kb.mozillazine.org/Tags#IMAP IMAP server would have to support keywords]. I have some accounts that do, and some that don't. So, you will have to confirm the server's capabilities. Without keyword support, you will probably have to define folders, e.g. Done, to indicate the status of messages that can be read by other computers. It's also possible to [https://addons.thunderbird.net/en-US/thunderbird/addon/edit-email-subject/ edit the Subject] field of received or sent messages, e.g. add 'Done', with an add-on.