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.
1 https://www.google.com/url?q=https://docs.google.com/forms/d/e/1FAIpQLScg6ponYf4bc9HftBh4H4LypqpqKm3AS3bEJ20u_EfgTw59GQ/viewform&sa=D&source=hangouts&ust=1539107700687000&usg=AFQjCNFJ4f8dyp1OgCLUwjeLWoUKY1-Z6QRobert Middleswarth supported this idea ·
An error occurred while saving the commentRobert Middleswarth commented
How about a way to unblock port 25. Even if requires human review it would be useful. We are looking to move resources to Google Cloud but in the end we can't move everything to Google Cloud because of the port blocking.