Doodle Professional users:
You can invite as many as 1000 participants per poll via email.
If you need more information or want to purchase Doodle Professional, click here.
Free Doodle users:
You can invite up to 10 participants per poll via email.
If you have not signed up for a free account you cannot invite participants via email.
If you are unable to send email invites, you'll need to make sure you are logged into your Doodle account and that you are not trying to invite more than 10.
Go ahead and log in to your account in order to invite up to 10 people.