KNOWLEDGE BASE

No "Enable TLS" Option in SMTP Configuration


Published: 09 Aug 2018
Last Modified Date: 11 Sep 2020

Issue

In Configuration > Notifications > Email Server, there is no "Enable TLS" option in Tableau Server 2018.2. 
When sending alerts or subscriptions, errors like the following may occur: 
javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465, response: -1
javax.mail.AuthenticationFailedException: 534-5.7.14


or 530 5.7.0 Must issue a STARTTLS command first

And therefore, you are unable to use TLS encryption for email subscriptions with Office 365 or Gmail. 
 

Environment

  • Tableau Server 2019.3 and earlier.
  • Office 365 or Gmail

Resolution

Upgrade to Tableau Server 2019.4 or later.

Cause

Support for SSL/TLS is added in Tableau Server 2019.4 and later.
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