During Black Friday, I've had 2 campaigns already where a shared IP ban caused 22.5 and 60% of my emails to bounce. After research, this turned out to be a problem on Klaviyo its end, who have a limited number of IP addresses. When you’re on top of your campaigns and you’re doing a send on a fixed timestamp, you can easily fix this by re-sending to all bounced contacts after you see it's not delivering in a 1 hour window.However, when sending emails in a local time zone and you work out a whole delivery schedule, and 24 hours later you figure out an email has not been properly delivered, you can’t fix it anymore. Support from Klaviyo was about to get back to me on this but I never heard back. Most likely they will get back after the BFCM period.Not happy with this, costing us a lot of money. Not speaking about the cost of using Klaviyo software.
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