How can I send an email to all of my participants / email blast?

Update Nov. 5th, 2019:

As of now, the email blast feature has been removed while our developers are working on it for Vyper 2.0.

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You have to set up SMTP in order to use this feature.

Set up SMTP here https://vyper.io/user-settings/smtp

You can do it by going to the Launch tab and then Email Broadcast:

Only participants who have confirmed their emails will receive the email blast sent from Vyper. This is due to potential spam issues.

Note: if you'd like to send an email to ALL participants, you can manually export your email list and use your email service provider.