Very simple addon that automatically sends a mail to your main character with sepcific items whenever you click on a mailbox logged with an alter.

Set your Main character: Log in with the character you want to receive all the items and type: /altmailer addMain
Add items to the sending list: While on any character, add the Item IDs of the objects you want to automate by typing: /altmailer addItem [ItemID] ( /altmailer addItem 7971)
Register your Alter characters: Log in with a character that will be sending items and type: /altmailer addAlter
Start Automating: Go to any mailbox with an Alter. The addon will automatically open the mail tab and send the mail to your Main with the items attached. Enjoy!

Commands

/altmailer addMain - Sets the current character as the Main.
/altmailer addAlter - Registers the current logged character as an Alter.
/altmailer addItem [ID] - Adds an item ID to the automatic sending list.
/altmailer showMain - Displays in the chat the character setted as Main.
/altmailer listAlters - Displays in the chat a list with the registered Alters.
/altmailer removeMain Removes the character setted as Main.
/altmailer removeAlter Removes the current character from the Alter list.
/altmailer clearAll - Completely resets the configuration.

AltMailer