Gmail: Create a filter to move spam to your inbox.

Getting started.

Sign-in to Gmail and click the search drop-down.

Create filter - Step 1.

Create a filter to act on items from tenniscircle.net.

Create filter - Step 2.

Set the filter action to never send tenniscircle.net email to spam (it'll go to your inbox instead).

Confirm new setting - Step 1.

Open your Gmail settings (look for the gear icon at the right, just above your inbox).

Confirm new setting - Step 2.

Select Filter settings and verify that mail from tenniscircle.net will never go to spam.