• KX Solutions

  Enforcing SSL protocols between Platform JEMAIL and SMTP server

  Posted by dcrossey on June 17, 2021 at 12:00 am

  Hey all,

  If you are using the bundled java email engine in KX Platform to send emails to an (SMTP) relay server using TLS, and you’ve recently upgraded/or the SMTP has been upgraded, and you’ve seen an error where the TLS connection cannot be established (after working previously), such as:

   

  You will need to add a new parameter to your DS_JEMAIL_SERVER config to explicitly set the SSL protocol that is accepted by your SMTP relay server.

  For example:

  mail.smtp.ssl.protocols Specifies the SSL protocols that will be enabled for SSL connections

   

  mail.smtp.ssl.protocols=TLSv1.2

  Note – I’ve redacted the from / host / trust addresses.

  After updating your configuration, remember to bounce your java email process to pick up the new configuration:

   

  You should see a similar message to this on your jemail process log after restarting:

   

  Now we can establish the TLS connection and send emails out

   

  Sample email API call:

   

  .email.send[`to`subject`body!(`$”YOURNAME@DOMAIN.COM”;”Test email”;”This is a test email”)]

   

  Further reading here:

  • Email engine – KX Platform
  • com.sun.mail.smtp (JavaMail API documentation) (javaee.github.io)

  Best regards,

  David

   

  dcrossey replied 8 months ago 1 Member · 0 Replies
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