a month ago
Our app needs outbound SMTP access (ports 587/465) to relay email through a customer's own mail provider (Gmail, Yahoo, Outlook). We're seeing all outbound connections to these mail-server ports timeout, while general outbound HTTPS (port 443 to normal web servers) works fine. We even tested port 443 directly to a mail host (smtp.mail.yahoo.com) and that times out too, while the same port to a normal website (google.com) succeeds instantly — so this looks like a network policy blocking mail-server destinations specifically, not just SMTP ports. Can you confirm whether this is an intentional restriction on your end, and if so, can it be lifted for our project?
Error message: "Couldn't reach that mail server. Double-check the host and port."
1 Replies
a month ago
Outbound SMTP is only available on the Pro plan and above, while Free, Trial, and Hobby plans have SMTP disabled. For sending emails from your application, please use a dedicated email service that provides HTTPS APIs. More information can be found in our documentation: Outbound Networking
Status changed to Awaiting User Response Railway • about 1 month ago
a month ago
This thread has been marked as solved automatically due to a lack of recent activity. Please re-open this thread or create a new one if you require further assistance. Thank you!
Status changed to Solved Railway • about 1 month ago