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.