Link tagging is used by Google Analytics (and other software) to track traffic to your website originating from emails.
It's unrelated to Envoke email activity reports such as opens and clicks, etc.
When link tagging is enabled, each link in your email is automatically tagged using tags called UTM tags. UTM tags are used by Google Analytics and other software for reporting purposes.
You can turn link tagging on/off for each message from the message editor, under the Configure tab of the editor page.
When link tagging is enabled, every link in every email campaign is tagged as follows:
utm_medium = email
value set to "email", cannot be changed
utm_campaign = [name of email campaign]
automatically populated with the name of your email, can be changed manually
utm_source = [list of recipients]
automatically populated with the name of your recipient list, can be changed manually
utm_keyword = [email subject line]
automatically populated with the subject line of your email, can be changed manually
utm_content = [blank]
not populated automatically, can be changed manually
Limitations with link tagging
The vast majority of websites work well with tagged links but some web pages don't support link tagging and will break when link tagging is enabled. This is beyond Envoke's control.
To resolve this issue, turn off link tagging.
Note that link tagging is unrelated to Envoke email activity reports such as opens and clicks, etc. You'll still get email campaign reports even when link tagging is disabled.