Which is grammatically correct: 'Dear all' or 'Dear All'?

dear all translation in English

That painting cost me dear interjection : Oh dear, what a disappointment! Dear me! What's all that noise?

dear lottery yesterday Dear all, My mother is having severe diaper rash with redness and whiteness She has itching She is diabetic Would you please pray for

dear lottery result today 1 pm west bengal 1 Dear team