Yes Mandrill or SendGrid it can only done via API calls which is why I built a small tool I guess the bigger question is it spammy? and will anyone else use it?

Yes Mandrill or SendGrid it can only done via API calls which is why I built a small tool I guess the bigger question is it spammy? and will anyone else use it? Trying to decide if I should make is public or maybe open source it more towards public offering with a one time fee