We are currently testing a new option that may help people send mail without using a third party service. If you are interested in testing this product, please fill out the interest request form here1. Product Management for the feature may reach out to you.
We are also continuing to make improvements to our system to allow for some customers that have an established relationship with us to apply for an exception to be able to send directly on port 25. There are a number of IP reputation issues that have to be worked through for such a use case, so it should not be considered a common solution that will meet everyone’s needs.
We will have more updates on both of these items over time.
An error occurred while saving the commentGabriel Diaz commented
It's ridiculous. Only Google accounts can be used but Google restricts the number of emails that can be sent per day in a GSuite account. Then, create the PTR records, have DKIM, etc., Why, if they have port 25 closed.? Absolute ridiculous!