| Class | Rating | Complexity | Lines of code |
|---|---|---|---|
| Sendbox_Newsletter_Settings | 23 | 160 | |
| Sendbox_Newsletter_Forms | 19 | 149 | |
| Sendbox_Newsletter_Users | 13 | 49 | |
| Sendbox_Newsletter_Ajax | 12 | 44 | |
| Sendbox_Newsletter_Requirement | 6 | 20 | |
| Sendbox_Newsletter_Loader | 6 | 33 | |
| Sendbox_Newsletter_Shortcodes | 5 | 14 | |
| Sendbox_Newsletter_API | 2 | 9 |