swahili

I want to write an e-mail to company, so it's a pretty formal situation, but I don't know of any formal swahili greeting I could use to start the lettre. I know of "jambo" and "habari yenu?", but I have the feeling it's too casual... Is "salaam" okay in swahili too or is it really just an...

I want to write an e-mail to company, so it's a pretty formal situation, but I don't know of any formal swahili greeting I could use to start the lettre. I know of "jambo" and "habari yenu?", but I have the feeling it's too casual... Is "salaam" okay in swahili too or is it really just an...