As some of you know we announced the addition of certain IPs to our blocklist as part of our ongoing efforts to combat bot activity (incase you missed here is the blog). However, following customer feedback and further investigation, we have discovered important insights we have decided to revert these changes.
Reasons for Reversion
Upon customers feedback our team started doing more analysis on these new IPs and identified:
Since these IPs are part of Barracuda Email Gateway Defense, it's quite possible that even legitimate user clicks are also coming through this gateway. In this case, all requests we are receiving at Marketo Engage infrastructure could be the same IPs for both legitimate clicks and bot clicks for leads who use Barracuda services.
In response to these findings, we have planned to revert the changes by removing the 16 identified IPs from the blocklist during the week of May 22nd, 2023. We will closely monitor the situation and collect further data to inform any future improvements to our bot handling mechanisms. An email communication has been sent to all admin users last week.
With the rollback, activities from these IPs will log back into Marketo Engage instances. As a result, customers can expect click rates, open rates, and other related metrics to return to the range they were in before February 14th, 2023.
Note: Activities from these IPs since Feb 14th 2023 cannot be retrieved.
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