IPlayerMailData (CustomNPC-Plus 1.11.1 API)

```
public interface IPlayerMailData
```
Manages a player's mail inbox, including sending, removing, and querying mail.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`addMail(IPlayerMail mail)`	Adds mail to the player's inbox.
`IPlayerMail[]`	`getAllMail()`
`IPlayerMail[]`	`getMailFrom(String sender)`	Returns all mail from the given sender.
`IPlayerMail[]`	`getReadMail()`
`IPlayerMail[]`	`getUnreadMail()`
`boolean`	`hasMail()`
`boolean`	`hasMail(IPlayerMail mail)`	Checks if the player has the specified mail.
`void`	`removeMail(IPlayerMail mail)`	Removes specific mail from the player's inbox.

- Method Detail
  - hasMail
```
boolean hasMail()
```
    Returns:
    
    true if the player has any mail.
  - addMail
```
void addMail(IPlayerMail mail)
```
    Adds mail to the player's inbox.
    
    Parameters:
    
    mail - the mail to add.
  - removeMail
```
void removeMail(IPlayerMail mail)
```
    Removes specific mail from the player's inbox.
    
    Parameters:
    
    mail - the mail to remove.
  - hasMail
```
boolean hasMail(IPlayerMail mail)
```
    Checks if the player has the specified mail.
    
    Parameters:
    
    mail - the mail to check.
    
    Returns:
    
    true if the mail exists in the inbox.
  - getAllMail
```
IPlayerMail[] getAllMail()
```
    Returns:
    
    all mail in the player's inbox.
  - getUnreadMail
```
IPlayerMail[] getUnreadMail()
```
    Returns:
    
    all unread mail in the player's inbox.
  - getReadMail
```
IPlayerMail[] getReadMail()
```
    Returns:
    
    all read mail in the player's inbox.
  - getMailFrom
```
IPlayerMail[] getMailFrom(String sender)
```
    Returns all mail from the given sender.
    
    Parameters:
    
    sender - the sender name.
    
    Returns:
    
    an array of matching mail.