title: Google Compute Engine (GCE) email delivery solution?
body: <p>I've just setup several instances on Google Compute Engine and getting trouble with email delivery system since GCE blocks outbound connections on ports 25, 465, and 587.</p>
  
  <p>GCE provides details solution at: <a href="https://developers.google.com/compute/docs/networking#mailserver">https://developers.google.com/compute/docs/networking#mailserver</a> to using postfix to send email via smtp.gmail.com using Google Account.</p>
  
  <p>The problem is Gmail has its own sending limits and it will be a big problem for high traffic website which need to send email notifications heavily.</p>
  
  <p>Is there anyone has a solution to send more higher sending limits for GCE instances?</p>
  
  <p>Thanks in advance.
  Best Regards,
  T</p>