https://www.machform.com/forums/ MachForm Community Forums Topic: No Duplicate rule en Mon, 04 May 2026 01:39:05 +0000 https://www.machform.com/forums/topic/no-duplicate-rule#post-336 Wed, 21 Nov 2007 05:47:57 +0000 yuniar 336@https://www.machform.com/forums/ <p>Sure, you can do that by enabling the <strong>No Duplicates</strong> rule for your email field.</p> <p>So you need to disable the <strong>Limit One Entry Per User</strong> and then enable the <strong>No Duplicate</strong> rule for your email field. </p> https://www.machform.com/forums/topic/no-duplicate-rule#post-333 Tue, 20 Nov 2007 23:58:35 +0000 toloko 333@https://www.machform.com/forums/ <p>The rule that prevents someone from filling the form twice uses an IP address to limit submissions. Many of my users would have the same ISP gateway (IP address). Is it possible to limit submissions by e-mail address rather than an IP address. </p>