If only the first line of the URL is highlighted in your email, your email client is truncating or cutting off part of the URL; the entire URL is between 2 - 5 lines long.
You must select reply on your email. At the end of each line in the link, select delete until the next line attaches to the previous line. Continue to do this until all of the lines are underlined. Copy and paste the entire link into the address bar of your web browser.
Due to a situation with Office 365 where a service titled Safe Link may have been enabled by your Office 365 administrator, you could received a certificate link that will not function properly. If the link you see in your email from EMI contains text similar to https://na01.safelinks.protection.outlook.com/?url=, please contact your local technical department and ask that they allow links from EMI to pass through your email system unchanged.
If your organization is using Office 365, please reach out to your IT department and ask that they allow links from EMI to pass through unchanged.
The pattern required will be http://emilms.fema.gov/ecert/cert.asp.
More information regarding correcting this issue can be found at these links https://blogs.perficient.com/microsoft/2015/12/office-365-using-the-new-advanced-threat-protection-feature/ and https://support.office.com/en-us/article/Office-365-ATP-safe-links-dd6a1fef-ec4a-4cf4-a25a-bb591c5811e3*