Heads up to anyone trying to communicate with Facebook users in Iran: although access to Facebook is apparently shut down, email notifications are still largely going through. So if you want to leave a Wall post on the profile of a friend in Iran that other Facebook users can see, the contents of your Wall post will still be delivered via email.

The same goes for comments on Wall posts and Facebook messages too. Most Facebook users have email notifications turned on for these settings, and will get the full text of your message via email as well.

Facebook didn’t always include the full text of Wall posts and Facebook messages in email notifications. The current situation in Iran shows however that doing so could actually end up making a big difference to people in places where access to Facebook itself has been blocked.