Setting up SMTP with DxEnterprise Version 17 on Linux

Applies to…

  • DxEnterprise 17.0 for Linux


The following error is logged to the system when trying to configure SMTP on a Mono-based install:

DxEngine completed with status 1

Journalctl reports Caught exception: System.Net.Mail.SmtpException: Message could not be sent.

SystemIOException: The authentication or decryption has failed

System.InvalidOperationException: SSL Authentication error: RemoteCertificateNotAvailable.


The resolution is to manually add your certificate to the trusted list for the Mono framework.

For Redhat Enterprise Linux and derivatives:

sudo yum install mono-devel -y

sudo certmgr -ssl https://your.smtp.server

For Ubuntu Linux:

sudo certmgr -ssl https://your.smtp.server