2018-04-09 16:47:09 TLS error on connection from [169.48.173.31]:48106 (SSL_acce

[mbabbitt]

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 [xxx.xxx.xxx.xxx]: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?

[DW]

Hi,

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.

Regards