Author Topic: 2018-04-09 16:47:09 TLS error on connection from []:48106 (SSL_acce  (Read 4328 times)


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We have Open SSL v1.2 installed due to security upgrades and shutting off insecure cipher suites and it appears that ListMail Pro cannot connect to SSH any longer as a result. I'm now getting the following error:

"TLS error on connection from []:48106 (SSL_accept): error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown protocol"

We cannot send mail without authentication any longer so sending plaintext is not an option. Does ListMail not yet support Open SSL v1.2?


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Try preceding your SMTP hostname with tls:// or ssl://

If neither of those work a modification may need to be made to connect in a specific way or you could switch to PHP mail.

Dean Wiebe
ListMailPRO Author & Developer - Help | Support | Hosting