The major email providers have all put out a blog post on this, so I’m aggregating them here. This is aggregated across every Industry and type. The variance between industries is quite high, anywhere from 0.07% to 0.46%.
|Blog Post||Unsubscribe Rate|
The general recommendation is to keep unsubscribe rates below 0.5%.
You should dig into the benchmarks to get something closer to your Industry and email type.