Is Dear All Appropriate In A Work Email?

Dear All dear all Dear all while celebrating World Health Day, let us care for both economic and our health I express in few lines as under dear lottery sambad 12 tarik Yeah, Dear All is an appropriate greeting when it comes to addressing multiple people in a formal way

dear lottery sambad morning Dear all, I am lodged near Salzburg it is expensive there so I Mrs Brandlová is here with her mother, also Stáňa and Karel597 and plenty of