Opt Out Option

Hi we recently updated and lost our volunteer who helps with the website ans dont have any to help us anymore. We add the send email to all members option with new blog post and was hoping you can help with 2 issues with that.

Members are getting mad because there is no opt out or unsubscribe at bootom of email that is sent to them is there a way you can turn that on?

Also the post shows the entire blog post rather then just a few paragrapghs Please Help