Use ExactTarget Email Web Service or MailChimp

Lets get a few more details. What kinds of emails are you talking about sending? Just marketing ones or all? I believe you'd have to write some pretty custom code in your custom provider to only handle specific email types. You could also write a specific event handler to override the one specific for your action (send newsletter or some action like that), which will override and send to the ExactTarget web service vs. the Kentico email queue.

If you want to send all emails through ExactTarget, you could replace Kentico's Send Queued Emails task, with a custom one that pulls emails from the queue and sends them to the ExactTarget web service. Basically what the custom email provider would do, only the custom email provider would be less work. Looks like exacttarget has a SDK you could use and do something similar to this

If you are sending only certain email types, I would follow Brenden's suggestion.

Thanks: I have multiply type of Email routes: smtp, company email web service and external Exact Target.

Here is an update: I got the Custom Email Provider route working this morning. I am able to intercept, now working on the Exact target call.

It would be nice if the Send Mail step in the Marketing automation would allow picking of the smtp server/service. Looking at determining the route in the custom email provider now. Maybe look for some type of variable (subject name or something in the template markup) in the template to pick the email path.

Thanks Brenden, I had no idea about this option. I see a lot of expansion possibilities with this. Feel like a kid with my hand in a cookie jar.

I guess step one is a choice of two different options, either place the action class in the app folder or recreate class lib (dll) than reference the lib.