Another way you can probably increase the effectiveness of marketing emails is to send less of them. If you're sending daily emails or worse multiple emails a d

Another way you can probably increase the effectiveness of marketing emails is to send less of them. If you're sending daily emails or worse multiple emails a day, your emails are spam and people will start auto-deleting them. This trains the spam filter to identify them as spam which means you will probably be identified as spam for other users with the same email provider. If you're a clothing store, you can also increase the effectiveness of your marketing emails by only sending emails that are relevant to that customer. If I've never bought children's clothes at your store, that probably means I don't have any kids and am not interested in hearing about a sale on clothes for kids. Likewise, if I only buy men's clothes that means I'm probably not interested in hearing about sales on women's clothes. In the case of Amazon, they have a bad habit of sending marketing emails if you've ever bought anything in a specific category. Buy a vinyl album for somebody as a Christmas gift once? That means you must be interested in hearing about similar vinyl albums on a regular basis. The common thread between those 2 is that retailers collecting data on past customer purchases is a good practice for both the retailer and the customer but only if the data is used intelligently to send relevant marketing emails when they're going to be genuinely of interest to the customer.