MailEnable Server - Outlook & Cloudflare Issues

We host our own mail server (MailEnable). Outlook clients, using the new Outlook, are suddenly not able to connect to our MailEnable server. Other email clients can connect to the email server through our local network, but Outlook no longer does. Also, we use Cloudflare for DNS and rerouting to our local mail server and webpage. Something happened yesterday afternoon. Strange thing is that those who left their computers on are still able to access their email through outlook and those that shut down their computers yesterday are now not able to access through outlook. As a workaround I have installed em client on the workstations and connected them via IP of our local MailEnable server. But none can connect throught mail.westsidemotors.net. wenstsidemotors.net is no longer working either. I suspect there is an issue with Cloudflare as well? Seems strange that Cloudflare and Outlook would experience issues at the same time. I am not the oone that set it all up and am not familiar with cloudflare and MX records enough to figure what is wrong.