You might occasionally come across a link in a message or on the web that has https://nyl.as/ in it. These links redirect to another page on the internet. Links to nyl.as are part of our message tracking feature — they generate a notification when someone clicks the link. In normal use they’re not malicious or a security issue.
nyl.as errors on older devices
Section titled “nyl.as errors on older devices”Some devices might receive “Certificate not trusted” errors (or other related errors) if they try to access nyl.as links. This is because they don’t support Let’s Encrypt certificates. For more information, see Nylas domain certificates.