"Certificate" problems

It will send if I select "Yes" in the pop-up. I tried everything - change settings, ports, repair, re-install the e-mail. Nothing works.

Me too.  Do we have to install a new certificate? Where do we get that?  Seems like we shouldn't have to buy a new certificate

No idea. I was told that there was nothing wrong with homestead's server certificate. I tried to install the certificate on the first pop-up but that doesn't do anything.

Where did you find the Homestead server certificate?  Seems like my error wants it to be on my local workstation.

I didn't find any certificate. The first pop-up has an option of "install certificate", which I tried, but to no avail.