There are a lot of email marketing services out there, like Constant Contact and MailChimp, for sending out marketing emails.
My company produces emails for other businesses, and we use services such as these for sending them to a large group of recipients.
Virtually all of these services require an "unsubscribe" link be present in the emails. OK, I understand that for emails destined to the general public. But sometimes, companies want us to produce and send emails for internal company use only. Obviously, they don't desire an extraneous unsubscribe link at the bottom of their internal emails.
Does anyone know of such a service that will send emails without requiring the unsubscribe link? (I still want the service to have the feature, as obviously all the public-bound emails should have it. We just need a nice way to send "internal" emails without them).