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Yes. you can paste them in the Manual Entry box. They can be listed one per line, or separated by semi-colons. Just export from your favorite eblast program and paste in the box. If you enter an email in manually and they are already in your selected list segment, don't worry, we will just send them one message and it will count as one of your sent emails that month.
Can people subscribe without having an account?
Yes.A subscribe feature is coming soon! But, keep in mind that your customer list is not only members–customers enter their email with each order, and all those emails are contained in your list segments.
Do I pay based off of emails sent, or users in my database?
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Don't send emails for a whole month?! We have structured this feature as a subscription service, so there is a base rate for up to 3000 emails sent. This will give you an incentive to use it up and get those emails out there!