You can send emails to individual participants (via their ID), a list of participants (via a comma separated list of IDs) or in bulk to all participants who took part in a study.
You can also send messages to participants by using an email address of the form;
You can initiate messages by selecting some or all participants from a list and clicking on "Message participants"
Participants will be notified by email when they receive a message. The emails are sent from Prolific and the emails of both researchers and participants are protected. That is, neither researchers nor participants have access to each other's emails.
You can now also view your inbox in the new interface. Here you can view and reply to messages, as well as check your sent messages.