Ricoh MP 2590 Scanner Reference page 26

Sending Scan Files by E-mail
B
Using the number keys, enter the five-digit registration number assigned
to the required destination folder.
If the entered number is less than five digits, press the {q} key after the last
number.
1
Example: To enter 00003 Press the {3}, and then press the {q} key.
Searching the machine's address book for the destination and selecting it
This section explains how to search the machine's address book for the destina-
tion and select it.
A
Press [
B
To search by destination name, press [Search by Dest. Name].
To search by e-mail address, press [E-mail Address].
The soft keyboard appears.
You can also search by combining [Search by Dest. Name] and [E-mail Address].
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].