can't be amused by the spelling of his name. Getting to the point. People are busy; they don't have time to read long emails. Your client or buy email database colleague wants to know what an email is all about as soon as possible. Do not add fluff or information that is not necessary. Properly use blind copy (BCC) and courtesy copy (CC). CCI should only be done for convenience.
When sending out a mass email distribution list so that customers or colleagues don't have to see a long list of names (and people who don't want to not have their email shared will be protected). Use CC when sending copies to buy email database anyone directly involved with a specific idea or function. Should you copy your boss when emailing about a business issue or project? Maybe. If in doubt, ask your boss. If it's something important, they might want to know. If it's mundane, they may find it boring. Interrogate.
This helps position you as someone who is both respectful of other people's time and concerned about keeping them informed. Remember what your mother said. Please say thank you." Disconnect appropriately. 'Your humble servant' is out buy email database of fashion and 'luv alwaze' was never out of fashion. Try, "Look" for a professional (if distanced) tone (and its variations - "Warm", "Best", "Kindest") or ""Best Wishes", or the increasingly common "Cheers". Keep the message thread in place during a reply.