No SMTP servers were available — SSL_connect returned=1 errno=0 state=error: dh key too small

Help
1

Hi Sir,

My web server is CaddyServer and I’m using CaddySSL. Im getting below error when I send emails securely via TLS.


**SSL_connect returned=1 errno=0 state=error: dh key too small**

My OS: Ubuntu 20.01

Can anyone please help me solve this. Thank you in advance!

Kind Regards,
Xeny

2

Caddy is an HTTP server. SMTP is not HTTP. Caddy is not the right tool to proxy SMTP connections.

You may use caddy-l4 which would allow you to proxy connections at the TCP level GitHub - mholt/caddy-l4: Layer 4 (TCP/UDP) app for Caddy

Please fill out the help topic template when posting on the forums.

3

This topic was automatically closed after 30 days. New replies are no longer allowed.