Every time I use Outlook I need to change SMTP port to 587. The problem is that every time I start the program it restores the default port 25. How can I set the port to 587 permanently?
This is more of a recommendation than an answer to your issue. I would recommend using a supported email client like Thunderbird or Outlook (Microsoft Office), but if that is not an option, I would recommend reinstalling OE6 which is still available for download. You can also review the following link for more suggestions;
Brian Crawford MxToolbox Inc. mxtoolbox.com