Greetings together!

In German, you can address a group as zusammen, which can be translated as together in English. I sometimes see e-mails or hear Germans starting a presentation with "Hello together". This doesn't work in English (and is so unusual to native speakers that it's almost confusing). In e-mail, try "Hi All" or "Hi everyone". For a verbal presentation, try simply "Hello" or "Good morning" (no need to be more specific).