Setting up a Direct Delivery connection allows you to send bulk mail if it is otherwise disallowed.
Step 1: Choose Tools|Options from the menu bar
Step 2: Go to the second tab named 'Connections'
Step 3: Click on the second radiobutton to mark 'Direct Delivery'
Step 4: The DNS Port should typically be set to 53
Step 5: You needn't complete the DNS field, only the DNS IP is required. To find
out what the DNS IP should be:
Step 6: Complete the DNS IP field and click 'Save'.
Alternatively, BuckyMail can auto detect your DNS Settings