I don't think it's been used much as the project is fairly new. Wild Duck powers https://ethereal.email/ https://ethereal.email/ but this is mostly for fuzzy te

I don't think it's been used much as the project is fairly new. Wild Duck powers https://ethereal.email/ https://ethereal.email/ but this is mostly for fuzzy testing purposes, I hope to get strange emails that would fail the system. I've been building Wild Duck to replace the Courier based mail cluster we have deployed for 150k+ mailboxes in my day job. The current system really shows its age and something better was needed.