How to say good morning in mail

I think you meant to ask "How to say 'Good morning' in Malayalam?"

In Malayalam, you can say "നല്ല രാവിലെ" (Nalla Rāvilē) which literally means "Good morning".

Here's a breakdown of the words:

• നല്ല (Nalla) means "good"
• രാവിലെ (Rāvilē) means "morning"

So, "നല്ല രാവിലെ" is a common way to greet someone in Malayalam during the morning hours.