I see.
I meant that I am not erroneously placing marketo tracking code into the links in the emails, but rather marketo is applying it automatically as they go out (as normal). If I had been using a tracking code on the link before sending out, it could potentially create errors in registering clicks, as additional code would be applied as they go out. Anyway, that's not the case.
I figured there must be some sort of automated tool, but I can't find any evidence of anyone else running into the same issue, so I thought I'd check the community to see if I could find someone.
It makes it a little difficult to accurately track who at these companies is actually clicking on emails, but I guess there's nothing I can do about it unless they talk to me. I have notified sales that these people are likely oblivious to the fact that they've registered clicks, so that will have to do for now. Something to keep an eye out for, anyway.