Hi George/all,
We're a small startup and we've invested in Google Cloud infrastructure for hosting our platform. We offer a B2B service and it is imperative for our customers to send emails to their clients using our platform (thus using their SMTP).
We're at a critical juncture in our early days and this is a showstopper for us. Our users need to be able to send emails from their mail servers using SMTP, whether it be Gmail, Yahoo, FastMail, or whoever. Using SendGrid or MailGun doesn't allow us to fulfil this requirement.
There was a post from Paul Nash, here:
that suggested that we could request SMTP and IMAP ports to be unblocked?
I'd be very grateful for any advice as I'm currently looking at all possible alternatives as we need to go live with this pretty soon.
Thank you kindly,
Karl