topic Error when enabling TLS for email. in Alerting https://community.splunk.com/t5/Alerting/Error-when-enabling-TLS-for-email/m-p/566203#M12985 <P>We recently updated our Splunk infrastructure to 8.1 and before we upgraded, the enable TLS option was checked on the mail server settings. The alert_actions.conf has not changed at all. Now for emails being sent, we receive the following error in the python.log:</P><DIV><SPAN>sendemail:456</SPAN> <SPAN>-</SPAN><SPAN> [</SPAN><SPAN>SSL:</SPAN> <SPAN>SSLV3_ALERT_HANDSHAKE_FAILURE</SPAN><SPAN>] </SPAN><SPAN>sslv3</SPAN> <SPAN>alert</SPAN> <SPAN>handshake</SPAN> <SPAN>failure</SPAN><SPAN> (</SPAN><SPAN>_ssl.c:742</SPAN><SPAN>) </SPAN><SPAN>while</SPAN> <SPAN>sending</SPAN> <SPAN>mail</SPAN> <SPAN>to:</SPAN>&nbsp;&lt;EMAIL_ADDRESS&gt;</DIV><DIV>&nbsp;</DIV><DIV>If I manually add use_tls = 1 in that conf file, there are no errors, but if enabled on the web UI, it errors with the above.&nbsp;</DIV><DIV>&nbsp;</DIV><DIV>I am not sure what else to check here as nothing has changed except for the upgrading of the Splunk version on the servers. Has anyone else experienced this?</DIV> Tue, 07 Sep 2021 19:17:31 GMT hutsellmA 2021-09-07T19:17:31Z Error when enabling TLS for email. https://community.splunk.com/t5/Alerting/Error-when-enabling-TLS-for-email/m-p/566203#M12985 <P>We recently updated our Splunk infrastructure to 8.1 and before we upgraded, the enable TLS option was checked on the mail server settings. The alert_actions.conf has not changed at all. Now for emails being sent, we receive the following error in the python.log:</P><DIV><SPAN>sendemail:456</SPAN> <SPAN>-</SPAN><SPAN> [</SPAN><SPAN>SSL:</SPAN> <SPAN>SSLV3_ALERT_HANDSHAKE_FAILURE</SPAN><SPAN>] </SPAN><SPAN>sslv3</SPAN> <SPAN>alert</SPAN> <SPAN>handshake</SPAN> <SPAN>failure</SPAN><SPAN> (</SPAN><SPAN>_ssl.c:742</SPAN><SPAN>) </SPAN><SPAN>while</SPAN> <SPAN>sending</SPAN> <SPAN>mail</SPAN> <SPAN>to:</SPAN>&nbsp;&lt;EMAIL_ADDRESS&gt;</DIV><DIV>&nbsp;</DIV><DIV>If I manually add use_tls = 1 in that conf file, there are no errors, but if enabled on the web UI, it errors with the above.&nbsp;</DIV><DIV>&nbsp;</DIV><DIV>I am not sure what else to check here as nothing has changed except for the upgrading of the Splunk version on the servers. Has anyone else experienced this?</DIV> Tue, 07 Sep 2021 19:17:31 GMT https://community.splunk.com/t5/Alerting/Error-when-enabling-TLS-for-email/m-p/566203#M12985 hutsellmA 2021-09-07T19:17:31Z Re: Error when enabling TLS for email. https://community.splunk.com/t5/Alerting/Error-when-enabling-TLS-for-email/m-p/566221#M12987 <P>Hi. Did you see this Splunk answers?</P><P><A href="https://community.splunk.com/t5/Splunk-Enterprise/Sendmail-sslv3-alert-handshake-failure/m-p/297554" target="_blank">https://community.splunk.com/t5/Splunk-Enterprise/Sendmail-sslv3-alert-handshake-failure/m-p/297554</A></P><P>Sounds like a possible cipher suite issue.</P> Tue, 07 Sep 2021 22:14:19 GMT https://community.splunk.com/t5/Alerting/Error-when-enabling-TLS-for-email/m-p/566221#M12987 burwell 2021-09-07T22:14:19Z