Kind of pedantic, but if you check a domain like in1-smtp.messagingengine.com., it will appear to work and give the correct result for all tests except "The certificate is not valid for the server's hostname."
All the browsers I tested remove periods from the ends of domains in their URL normalization - this site should too.
It is common to have a period at the end if you are copying from an MX record configuration.
Kind of pedantic, but if you check a domain like
in1-smtp.messagingengine.com., it will appear to work and give the correct result for all tests except "The certificate is not valid for the server's hostname."All the browsers I tested remove periods from the ends of domains in their URL normalization - this site should too.
It is common to have a period at the end if you are copying from an MX record configuration.