3. Avoid sending to a lot of people in one email or bulk emailing. When you’re at a party everyone doesn’t just stand on a chairs and yell at everyone else; you speak to people one-on-one, or in a group conversation with specific topics. Email is like that too. Separate out lists into smaller groups or “segments” so that each batch will have a manageable amount of emails in it, and you can tailor your communication to each. Fifty or less is a good baseline, but each individual mail system can provide a more accurate guideline. A side note, if you are using a system like Outlook or Gmail (versus MailChimp or Constant Contact), be sure to add the contacts you are trying to send to in the BCC box, rather than To or CC. However, with the proliferation of free or really inexpensive systems, we don’t recommend using your personal email at all for emailing bulk lists.