The Mail System is an essential MMORPG feature that allows players to send messages, items, and money to one another. It is also where Auction Halls send money from auctions that either succeeded or failed.
The Mail System was not introduced into Ragnarok Online until Episode 10 while Ragnarok Online II was launched with a Mail System. Because of this, RO2 has a mail alert icon for new mail whereas RO does not.
Ragnarok Online
In RO, mailboxes can be found in most towns. Accessing the mailbox will incur a 130 Zeny fee so make sure you have enough money to open your mailbox.
When opening your mailbox, you will be greeted with the inbox tab where any and all mail you receive from other players and the Auction Hall will be stored. Unlike most MMORPGs, RO's mailbox does not have expiration dates on mail, allowing players to essentially use it as an alternative storage without worry of their items getting deleted. However, players can only receive a maximum of 30 messages as the system will delete extraneous mail starting with the oldest ones.
Clicking on the "Write" tab will allow you to compose a message to send to another player. Players can only send 1 stack of an item at a time, like many other MMORPGs' mail system. Players can also send money by clicking on the Zeny line in the composition window. Unfortunately, RO's mail system does not allow players to send mail to characters on the same account.
A typical mailbox in RO.
The mail inbox in RO.
Composing a letter in RO.
Unfortunately, due to bugs and an item duping exploit, the Mail System in RO was removed completely.
See Mail System Removal for more information.
Although some servers like iRO have the Mail System re-implemented, it is heavily restricted on what items can be sent and players can no longer send money via the Mail System.
Ragnarok Online II
Mailboxes in RO2 can be found in every town and village in the game. Unlike RO, accessing the mailbox will not incur a fee and mail can be sent between characters on the same account.
Like many MMORPGs, mail received in a player's inbox has an expiration date. Players must read and resolve any mail they receive in 30 days or else the system will delete the mail whether it is read or not. Mail is deleted from oldest to newest. There is no limit to how much mail you can receive.
Clicking on the "Compose a Mail" button will allow you to compose a message to send. Sending mail will incur a fee of 10 Rupi for each separate mail.
The mailbox in RO2 lacks a Raggler.
The mail inbox in RO2.
Composing a letter in RO2.
