Hello @MariahW49 ,
Trial accounts can only perform up to 100 total sendouts - whether that's split across one email or multiple emails to your trial list of contracts uploaded. To be able to sendout more than that, you'd need to upgrade to one of the paid plans.
For the image display, I'd advise that you check your desktop email program's settings to make sure it's allowing images. Some email programs, particularly Outlook / Office, require their users to explicitly allow images to display / download every single time based on either the default, personal, or network settings.
Images not displaying in email clients
Blog: Display Issues
The Facebook button you currently have in your email is for sharing the email on a recipient's Facebook page. This functionality won't truly go live until the email is actually sent out, similar to a view-as-webpage link or the footer's unsubscribe link. This is because it requires connection with the Facebook API to auto-generate a post, and requires the person clicking it to be logged in. If you want to connect your Facebook page as a social media button, I'd advise changing the type of social button you have currently.
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