The term 'AGAIN MAIL' is a combination of two words, 'AGAIN' and 'MAIL'. The term refers to the process of resending an email or other type of message. The crossword solution for this term is RESEND, which is a six-letter word meaning to send something AGAIN. Resending emails or messages is often done when the original message was not received or was not received correctly. It is also used when someone wants to make sure that the recipient has received the message.