With a free account, you can invite up to 49 participants.
If you have not signed up for a free account you cannot invite participants via email. If you’re unable to send email invites, then you don't have a Doodle account or you’re not logged in.
Go ahead and log in to your account in order invite up to 49 people.
You can create one here: http://doodle.com/signup
Premium Doodle users have a much higher limit of 1000 emails per day.
Please note that while using the trial Premium version, the limit remains will also be of 49 invites per poll created.
If you need more information or want to try Premium Doodle, please follow this link: