Make sure you do not already have an e-mail concept opened in Outlook. This will cause a clash and result in an error. Close all e-mail concepts before sending out e-mails via Eventure.
If you want to e-mail from Eventure, Outlook will be run. Outlook is configured with a security that verifies whether an automatic e-mail is send. For each e-mail you have to confirm the e-mail being send. The program ClickYes does this automatically for you.