SMTP Session With openssl
Created on August 15, 2025
linux/networking
openssl s_client \
-connect smtp-relay.gmail.com:465 \
-servername smtp-relay.gmail.com \
-crlf
This will open an interactive session that is secured with TLS.
SMTP > TLS > TCP > IP
Type EHLO kuda.ai, and the server will respond with a few 250 options.
Type AUTH LOGIN.
You need your credentials in base64.
The first prompt is your user name, the second your password.
printf user@kuda.ai | base64 | pbcopy
printf pa55word | base64 | pbcopy