Newsletter Specifications


Submission Lead-Time: Creative files and click-through URLs must be submitted to Northstar no later than 5 business days prior to launch.

Creative Unit Name
width x height
File Types
File Size Limit
Horizontal Banner600x100.gif, .jpg, .png60 KB max initial load
Medium Rectangle300x250.gif, .jpg, .png60 KB max initial load

Animation: Allowed for this unit.
  • 15s max - 3 loops max
  • Include branding and the call to action on the first frame to ensure clients with animations disabled can view the advertisement.
Video & Audio: Not Allowed for this unit.
Third Party Tracking: Image pixel trackers (1x1) and click trackers (URL only). No scripts allowed. No tags allowed.