The length of your email marketing mailers can vary depending on the purpose of your email and the preferences of your target audience. However, as a general guideline, it’s a good idea to keep your email marketing mailers concise and to the point.

According to industry best practices, the ideal length of an email marketing mailer should be between 50 to 125 words for promotional emails, and between 100 to 150 words for transactional or personalized emails. This length is generally sufficient to convey your message and capture the attention of your audience without overwhelming them with too much information.

That being said, if you have a lot of valuable information to share with your audience, you may need to use a longer email. In this case, consider using formatting techniques such as subheadings, bullet points, and short paragraphs to make your email more scannable and easy to read.

Ultimately, the length of your email marketing mailers should be based on the needs and preferences of your audience, as well as the goals of your campaign. Test different lengths and formats to see what works best for your audience, and be sure to track your email metrics to measure the effectiveness of your campaigns.