Again, there is no concrete answer to this question. It really depends on your business, your list, your niche, and the types of things that you can actually offer your email list. One thing is for sure – do NOT be too aggressive with your emails. Sure, it’s OK to send new leads a sequence of 4-7 emails over the course of a week or two. But after that, lay your foot off the gas otherwise, it will result in high unsubscribe rates and irreparable damage to your brand.
It’s often seen as a good rule of thumb to send your list one to two emails per week. This quantity will allow you to stay engaged with them, but in a way that is not overly aggressive. Also, do not just spam your list with sales emails – you need to provide value! Send them links to informative blog posts, give them advice to help with their pain points – anything to build a relationship.