I have updated the required security settings.A few weeks ago I spent 4 days trying to get my outgoing mail to send mail. I reached tier 2 and finally got things to work after simply changing my password. Now, a few weeks later, my outgoing mail suddenly continues to show error message 0x80042109. One minute my outgoing mail was being sent and the next moment it stopped. I use Outlook 2016 (Office 365). I know there are no issues with my online cox account because I can send and receive mail on the cox website, but all of my contacts are in Outlook. Cox needs to fix this outgoing mail issue with Outlook. Everything was working fine until I changed the security settings. WHAT IS THE ISSUE COX?!!!! This is getting old - fast.