Toluwani
08/19/2026, 12:20 PMPylon
08/19/2026, 3:27 PMToluwani
08/19/2026, 3:55 PMPylon
08/19/2026, 4:03 PM"Application failed to respond" + request_id) comes from your hosting platform's proxy.
A couple of things we can try:
1. Switch to port 465 and restart. Resend supports this and 587 is the most commonly blocked port by hosting providers. If 465 is also blocked, we can try 2587.
2. From inside the container: nc -zv <http://smtp.resend.com|smtp.resend.com> 587 (then try 465 and 2587) -- if all of these hang it means that your provider / VPC is blocking outbound SMTP and you'll need to open it (or use a NAT gateway)
Let me know!Toluwani
08/19/2026, 4:11 PMToluwani
08/19/2026, 6:54 PMJake (Infisical)
08/19/2026, 7:32 PM