Starting this week, we are seeing horizontal lines, edge to edge, appearing between blocks in Outlook 2016 Windows app.
When we look in the raw source, there are empty <div></div> tags at those locations.
Hello @MCHT-Collier. I'm sorry that you are seeing these lines appear! This is something that has been noted by our engineers and is being researched further. We have mostly seen this happen on newer versions of Outlook and not on other email clients. The lines you are seeing are being pulled from the outer background color and changing the background color to the same white color should make these lines disappear when being viewed in Outlook.
Changing the background color isn't an acceptable solution, so I hope we'll be notified when the engineers resolve the problem.
I apologize this workaround may not be exactly what you're looking for. We have however added you to our queue to be notified when this experience is resolved.
Any update on this. It's looks just awful in Outlook
Thanks for reaching out in the Community regarding the issue with horizontal lines in Outlook. We know how important it is for your emails to look consistent across all email platforms.
One additional potential workaround we have found is that the lines seem to appear at the bottom of a table. So in some cases, you can merge the multiple blocks in to one block to reduce the number of lines appearing in the email.
Please let us know if you have any other questions on this. We're happy to help!
Is there an estimate on this fix?
We are seeing this issue in Outlook 2016 and 365
We don't have a time estimate for resolution as this is something we are waiting on Outlook to resolve on their end. This is has to do with how those two versions of outlook read HTML code so it is out of our control.
Please let us know if you have any further questions on this.