On Thu, Mar 24, 2016 at 10:16 PM, <frnk...@iname.com <https://bb.bixel.io/v1/track/click/5b03ad2e-fba5-0317-3bbe-4f961d5f5cc0/gm%3A1458918759684/mailop%40mailop.org/?mailto%3Afrnkblk%40iname.com=> > wrote:
> Thanks for sharing. > > > > Now that you know about the problem, was there anything else you could > have done that would identified the issue, and that can you can share with > the group? > > > > Frank > So far, I've found 2 things that I could have done (and am implementing today) to identify this issue: - Watch for large volume increases coming from accounts. This account had a 5x increase. - Watch for accounts cycling through lists. We hadn't built this before because it's a time consuming process for a user to remove and then re-upload a list and the lists are small. This user was cycling through many lists of 800 recipients. I can see why our existing systems didn't catch this one though -- open rates were good (20-36%), complaints weren't too high (.1% - .19%), bounces were minimal, domain distribution was normal with a large portion of it on domains with feedbackloops.
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