Is mails a scrabble word

According to the Official Scrabble Players Dictionary (OSPD), "mails" is indeed a valid Scrabble word.

Here are the details:

• Definition: plural of "mail", referring to letters or packages sent through the postal service
• Pronunciation: /meɪlz/
• Points: M-3, A-1, I-1, L-1, S-1 = 7 points
• Frequency: relatively common word, especially in informal writing and conversation

So, if you're playing Scrabble and you land on a tile that allows you to play "mails", go for it!