We are now talking about ”content”, i.e. text created ad hoc to educate your customers and sell. The content then, you’ll understand, can’t be ”limited” but must fully express what you need to explain.
So your email will be long enough to explain in an exhaustive and natural way what you want to convey to the customer at that moment.
(You have inside the classic example of the conversation between a representative and a customer).
And here your strategy will be the master, you will find, for example, the need perhaps to write a long email, and you don’t have to be in the position of having to worry about “who reads it,” because who you are reaching is a person/company in target with your offer/service, who has a pressing need or unresolved suffering that you are going to dissolve.
Not only that, you have all the info from your vendors to use directly on the emails.
Insert, by any means, in the emails the q&a and resolution of the most common objections collected by your salespeople during the sale of the specific product you are offering.
Always offer interesting news.
Starting to roll out a new brand or products? Go right out and create emails to educate your customers on the product’s important features, what problems it solves, and who it’s designed for.