Barracuda clicking all links in emails

A number of people have asked me recently if I know anything about appliances clicking all the links in emails. Some of those people have asked specifically about Barracuda, some have just asked if I knew of any filters that clicked links.
The answer is, yes, there are cases where spam filters have followed all the links in an email. One of the filters that I know has done this in the past is Barracuda. Based on discussions with the different people who are reporting this behavior, it does seem that this is happening more often. One person did mention that they were primarily seeing this with mail where the click domains were different from the From: domains.
I’m still working on getting more information from folks, and will update if I hear anything more. I’m also working on some advice for folks who get caught in this.
If you have experience with Barracuda (or other spam filters) clicking all the links in an email, drop me an email (contact)

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