Yes, you can automate the EMLX to MHTML conversion process using scripting or specialized software. You can use a third-party tool like FixVare EMLX converter software. That offers batch conversion features that can automate the process without manual intervention. There is no need for extra tool installation to export EMLX file items to MHTML. This tool provides speed and accurate conversion of EMLX email to MHTML. It provides all attachments while exporting EMLX files to MHTML.It also provide a free demo trial before purchasing.