Gregg Blanchard August 11, 2026
There have been some pretty unexpected use cases of SendView over the years, but there's one I really didn't see coming.
To make sense of why, however, I need to back up. To build a great competitor email tracking platform, you have to create email addresses that, once subscribed to a company's emails, stay subscribed to their emails. Which means those addresses need to:
- Be 100% unique
- Look like real addreses to avoid spam filters
- Pass verification checkers as "valid"
- Automatically open/click to avoid getting dropped due to inactivity
- Be saved to a database built for analysis
Because the only company that sees each address is the one you subscribe to, you can confidently know when a company shares that address. In fact, you can flag sender domains in the Notes/Description field for any tracking address using this format - [domain:gooddomain.com] - and in your Trends -> From Analysis dashboard it will actually tell you if that address ever receives emails from a different domain.
I didn't want to call anyone out, so the example below is just their ESP's default domain, but you can see how this works.
Now, this feature has been used in three different ways. To circle back where I started, I saw the first one coming. The second? Sorta. The third? Not even close.
#1. Marketers Monitoring Their Competitors
As you might have guessed, it's good to know whether your competitors are sharing their email database with partners. Thanks to our one-address-to-one-sender tracking, you can confidently see exactly that.
#2. Partnership Teams Monitoring Partners
Maybe it's what it takes to sign a big client or work with a big partner, but sharing lists happens. I get it. What you don't want to happen, though, is see that list used beyond the scope of that agreement. SendView can track that.
#3. Data Licensers Monitoring Clients
Email data licensing is a tricky corner of marketing. It may not be considered a best practice and there are certainly bad actors, but the U.S. is an opt-out country and there are a lot of thoughtful, smart people trying to do it right.
One step toward that goal is carefully controlling the usage of lists through licensing. SendView's tech, it turns out, is really, really good at helping ensure lists are only used by the people who are authorized.
Want a closer look?
Patrick and I love giving demos even if it's just to satisfy someone's curiosity. If that's you, just reach out - gregg@sendview.io - we'd love to show you around and dig into your use case and any specific features or tools that can help.
Otherwise, you can keep reading about the SendView platform as a whole or our features for data licensing companies.