<div dir="ltr">Hi,<br>I want to send notification mail using zimbra mail server. I can send mail without problems when TLS1.1, TLS1.2 is open on Zimbra mail server, but when I block TLS 1.1, I cannot send mail when only TLS 1.2 is used and I get an error. Zimbra mail server uses SSL protocol and port 465. In this way, when I configure email in the systemconfiguration file, I get the following error.<div><br></div><div><span style="color:rgb(51,51,51);font-family:monospace;font-size:11px;white-space:pre-wrap">javax.mail.MessagingException: Could not connect to SMTP host: x.x.x.x, port: 465;
  nested exception is:
        java.net.SocketException: Connection reset</span><br clear="all"><div><br></div><div><mail><br>            <server><br>                <host>x.x.x.x</host><br>                <port>465</port><br>                <username>zimbra</username><br>                <password><br>                    <t:encryptedData><br>                        <t:encryptionMethod><br>                            <t:algorithm><a href="http://www.w3.org/2001/04/xmlenc#aes128-cbc">http://www.w3.org/2001/04/xmlenc#aes128-cbc</a></t:algorithm><br>                        </t:encryptionMethod><br>                        <t:keyInfo><br>                            <t:keyName>jUGo07Uvc7Zd7wK6IyJ6hU2uLwc=</t:keyName><br>                        </t:keyInfo><br>                        <t:cipherData><br>                            <t:cipherValue>AtQGHzO7gA3qbJTj4y7UFhrfvZrshGWhvjU22dDLorw=</t:cipherValue><br>                        </t:cipherData><br>                    </t:encryptedData><br>                </password><br>                <transportSecurity>ssl</transportSecurity><br>            </server><br>            <defaultFrom><a href="mailto:zimbra@gov.tr">zimbra@gov.tr</a></defaultFrom><br>            <debug>true</debug><br>        </mail><br></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><br></div></div></div></div>