You can use many different link types in your email messages over text or in buttons.
Websites and linked files
This is the classic link type, starting with https:// or http://
This can be a link to a webpage or a link to a file such as a PDF.
Custom link to the email preferences / unsubscribe page
{@pref-1}
Related article: Using a custom email footer
The online version of messages
{@msg-url}
Send email links
mailto:email@address.com
Phone links
tel:123456789
Anchor links
Read about using anchor links
Which links show up as clicks in the email reports?
Only links that start with http:// or https:// are trackable. These include all {@ type links as well.
Anchor links, phone links and email links are not trackable.