Constants
| Name | Location | Description |
|---|---|---|
| PM_BLOCK_USER_DISALLOW_BLOCKING | pm_block_user/ | Disallow blocking private messages from a user. |
| PM_BLOCK_USER_DISALLOW_SENDING | pm_block_user/ | Disallow sending private messages to a user. |
| PRIVATEMSG_READ | ./ | Status constant for read messages. |
| PRIVATEMSG_UNLIMITED | ./ | Show unlimited messages in a thread. |
| PRIVATEMSG_UNREAD | ./ | Status constant for unread messages. |