If they signed up for their product I think it's fine. Just make sure to 1) give them a simple way to unsubscribe, 2) only email them if you truly believe it's of value to them.
I'd even go as far to say that customers expect to be informed of new product changes. They are paying for the product, so if it becomes even more useful they would want to know.
If they signed up for their product I think it's fine. Just make sure to 1) give them a simple way to unsubscribe, 2) only email them if you truly believe it's of value to them.
I'd even go as far to say that customers expect to be informed of new product changes. They are paying for the product, so if it becomes even more useful they would want to know.
It also depends on your type of customers. People like us who are inundated with emails might be less interested than the average joe/jane.