Different types of emails often require different lengths: - Newsletters: These can be longer, usually around 200-500 words, as they often contain multiple sections of content. - Promotional Emails: These should be shorter, ideally 50-150 words, focusing on a specific offer or product. - Transactional Emails: These are usually brief, around 20-100 words, providing essential information about a transaction. - Welcome Emails: These can be slightly longer, around 100-200 words, as they provide an introduction to your brand and what new subscribers can expect.