curlybracket

This plugin automatically sends an email when you publish a post to a list of people. This also works for scheduled posts. The email contains the title, excerpt, thumbnail and a link to the latest post. You may also add your logo and some text of your choice to the email.
You may specify the list of receivers on the plugin’s options page by copy-pasting a comma separated list of email addresses. People will receive the blog newsletter in Bcc, they will not see the other receivers.
You may also specify a sender address on the options page. If you do not specify an address, the sender address defaults to admin’s email address.

BlogNewsletter

This plugin automatically sends an email when you publish a post.

BlogNewsletter vs Mailchimp List Subscribe Form