View the mailing-specific parameter.
- Under Reports > Reports (classic) > Report center, open the Single Mailing.
- Click the mailing for which you'd like to view the parameter.
- Change the Summary drop-down to Clickthroughs and click Update.
- You see a list of the links in this email. Click edit next to one of the links that are a part of a domain that uses the analytics package.
- A box is displayed that contains the URL and the append string, which displays the mailing-specific parameter.