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 commentJP Barringer commented
@Paul Nash This is not a tenable solution. We set up our clients' websites on cloud providers. AWS and other IAAS providers aren't a problem but GCE is, only for this reason. I _really_ want to recommend GCE to folks but this is making it near-impossible. My own team is about to revolt over this.
I get the spam thing, but how about vetting the project owner's account or imposing some other limitation (maybe even a request in to customer support to un-block) so that those of us who need 3rd party email support can happily use GCE?
The simplest approach would be to just place IPs that develop low reputation on suspension or in some sort of probationary mode (maybe rate-limiting?). Innoncent until proven guilty and all that...