Check if encryption negotiation failed #12322
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If stream_socket_enable_crypto failed to negotiation encryption SMTP credentials could be sent unencrypted. Added a check to prevent this. Also fixed the duplicate EHLO when STARTTLS isn't sent.
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#12321 for master branch.
If stream_socket_enable_crypto failed to negotiation encryption SMTP credentials could be sent unencrypted. Added a check to prevent this.
Also fixed the duplicate EHLO when STARTTLS isn't sent.