Is “Mailbox” a Scrabble word?
Yes
MAILBOX
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Mailbox
noun
1.A box into which mail is put
2.A folder or account for the storage of e-mail; an electronic in-box or mailstore.
Synonyms: letterbox, post box