You can send or receive mail between other players to communicate and check system mails.
In Common Mail, you can check mail received from other players.
Up to 100 mails can be stored in Common Mail.
If you receive more than 100 mails, additional mail will not be stored until mails are cleaned up.
System Mail stores all the mail sent to you by the system.
Up to 100 mails can be stored in System Mail.
If you receive more than 100 mails, the oldest mail is deleted first.
System mail can't be replied.
You can send mail to other players and reply to the received mail.
There is Sending Fee when sending a mail.