There are some technical difficulties with Sakai today. OIRT is aware of the problem and is working to correct it as quickly as possible.
If you need to contact your students, you may want to use RAMS to create a mailing list in the meantime. http://rams.rutgers.edu for the main page, or click here to get started creating a class mailing list.
RAMS will use the same email addresses as Sakai and only takes a minute or two to set up.
