l provider should be compatible with any email client running on any operating system.</li>
<li><strong>Neutrality</strong>: using software that can censor information or ban users, and that is ideally developed by a politically neutral entity. For example, an end-to-end encrypted messenger can't censor messages because it can't even read the messages in the first place, and a federated messenger can't ban users because there is no central server that has control over who is using the messenger.
</ol>

