Twitter has taken over the Dutch newsletter maker Revue, the social medium reports in a blog post on Tuesday.
It is not known how much Twitter paid for the acquisition.
The company does not want to make any statements about this.
With Revue users can easily compose and send newsletters.
Users can also view statistics, for example about how many people have opened the newsletter.
With the takeover of Twitter, a number of things will change in the newsletter service.
The features previously reserved for Pro accounts are now available to everyone for free.
The mandatory commission for paid newsletters will also be reduced to 5 percent.
"This allows writers to keep more revenue from subscriptions," writes Twitter.
Twitter says it will continue to invest in the newsletter maker.
For example, there will be vacancies for various jobs.
The team behind Revue also continues to work on new features for creating newsletters.