# Sequences **URL:** \ **Category:** Tips, Tricks & Best Practices\ **Created:** [November 1, 2022, 9:09am UTC](https://community.hubspot.com/t/sequences/68287 "2022-11-01T09:09:34Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![harriskenny](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/harriskenny/32/76643_2.png) [@harriskenny](https://community.hubspot.com/u/harriskenny)\ **Post date:** [November 2, 2022, 2:09pm UTC](https://community.hubspot.com/t/sequences/68287/3 "2022-11-02T14:09:29Z")
A few things to think about: - **Deliverability.** Email sequences can toast your domain reputation if you’re not careful. You want to make sure your DNS records are properly set up (SPF, DKIM, DMARC). Give them a way to opt out of the emails to save yourself from being reported as SPAM. And verify the emails either by adding CAPTCHA on your site and/or using a bounce check tool. You want dynamic content (use personalization) for this too. - **Subject lines.** Once deliverability is considered, your subject lines are going to be a huge determinant on whether or not they see your emails at all. As @danmoyle suggested, do a lot of testing here. - **Body copy.** When it comes to your email itself, which I think was probably the main thing you were asking about! Make emails that are easy to reply to with a clear call to action. Use tools 3rd party copywriting assistance tools and the built-in suggestions from HubSpot to improve your email. A few interesting stats from cold email from Lavender.ai’s Will Alred to think about. Informative tones can drop reply rates by 26%. 25-50 word emails get 67% more replies than 125-150 word emails. Emails written at a 5th grade level have the highest reply rates. --- _[View the full topic](https://community.hubspot.com/t/sequences/68287)._