How to Disable Mandrill Link and Open Tracking
If you don't want to see mandrillapp.com URL's in your SendPress Newsletter links, you'll need to disable Mandrill Link and Open Tracking.
To do so:
1. Login to your Mandrill Account
2. Click Settings
3. Click Sending Defaults at the top navigation
4. Uncheck "Track Opens"
5. Select "No click Tracking" under the Track Clicks drop down.