Thanks for the response. I don't know what security is being used but I'm seeing similar results both on incoming emails and on the occasional outgoing email of ours that someone replies to (and that eventually makes its way to me.)
It does seem like a loophole that you can style this thing out of existence and I wouldn't want to do that... Don't want to give other firms' security teams the feeling that we're being tricky. But I do want to style them so that they look nice or at least don't break the tables apart.
I've gotten in touch with our security team and will hopefully get some sort of testing environment. Happy to share whatever results I come up with. If anyone else out there has put thought into this please feel free to jump in. No doubt this is affecting those of us who do B2B type comms...
I just got a newsletter that I'm subscribed to that displayed this issue in a variety of ways. By comparing the email itself (which had all the domains just like in my screenshots) to the View Online link (which didn't) I was able to determine that my final suggestion above would probably fix bad breaks like this:
Space before /a at least makes the break a little more natural:
Additionally, clusters of links like this:
can be made to disappear with style="color:#efefef; font-size:1px; line-height:1px" in the a tag (probably not a good idea to try to circumvent this security though) or at least made to blend in better by styling the a tags to match the brand even when an image is the only linked element.
Here are a few different options:
Hard to test since I can't as yet send myself tests that go through the security but I'll try to figure out if there's a way to test this. Either way, putting styles in links and spaces before /a tags can't hurt... I don't think.