Show HN: Mainly – a self-hosted mail client built for your multiple domains

Hey all,

I built this mail client to manage my self-hosted mail across multiple domains, and it's ended up being my daily driver (i.e. it gets patched quick) and thought I'd share it again here.

I wanted something that was fast to parse visually, easy to manage & customize, self-host and easily deploy, so it does all of the above. I'm an inpatient fella, so it also allows you to do things like bulk onboard domains, sort addresses into folders for visual sorting, adjust custom sender images & tags, has MCP integration and has a settings page for adjusting your search queries (can you tell I'm also an outlook user?)

Completely free & open-source, zero telemetry currently self-hostable only. Would love feedback and feature requests :~)