TLS version
Development and Programming
Can anyone let me know which version of TLS EE 4.3.3 supports? I cannot find any useful reference to TLS in the EE documentation or elsewhere.
We are unable to send mail using SMTP / SSL using the clients’s mailserver.
I have been advised by our hosting company that both our webserver and the SMTP mailserver only support TLS 1.2 - they are suggesting that EE is only able to use TLS1.1 which is causing the errors below?
Warning fsockopen(): SSL operation failed with code 1. OpenSSL Error messages: error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol ee/legacy/libraries/Email.php, line 1834
Severity: E_WARNING Warning fsockopen(): Failed to enable crypto ee/legacy/libraries/Email.php, line 1834
Severity: E_WARNING Warning fsockopen(): unable to connect to ssl://smtp.deleted.net:587 (Unknown error) ee/legacy/libraries/Email.php, line 1834
Severity: E_WARNING Warning Cannot modify header information - headers already sent by (output started at ee/legacy/core/Exceptions.php:119) ee/EllisLab/ExpressionEngine/Boot/boot.common.php, line 491
Severity: E_WARNING Error: Unable to send email at this time.
The following SMTP error was encountered: 0 Unable to send email using PHP SMTP. Your server might not be configured to send mail using this method.
That has nothing to do with ExpressionEngine. It’s a combination of your PHP environment and server’s OpenSSL libs as well as your email settings. ExpressionEngine, and any PHP application, is not responsible for those low level details.