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Socat doesn't support STARTTLS. If you want to debug SMTP submission "openssl s_client -starttls smtp -connect server:587" is awesome. Just take care not to use
by Melkman 3y ago
Socat doesn't support STARTTLS. If you want to debug SMTP submission "openssl s_client -starttls smtp -connect server:587" is awesome. Just take care not to use upper case "R" or "Q". Man, why did they implement rekeying and quit in such a bothersome way. Just use recipient and quit instead of RECIPIENT and QUIT.
- jwilk 3y agoSince OpenSSL 1.1.0, you can turn it off with -nocommands: https://github.com/openssl/openssl/commit/6ba8a5b77af5792b https://github.com/openssl/openssl/commit/6ba8a5b77af5792b
- hddqsb 3y agoSee my warning regarding s_client and security: https://news.ycombinator.com/item?id=36179850#36186559 https://news.ycombinator.com/item?id=36179850#36186559