We’re working on the same thing at GOV.UK: https://www.sign-in.service.gov.uk/ (https://github.com/govuk-one-login)

+1 never had problems with my emails being blackholed, and incoming spam filtering is good.

My favourite feature is the subdomain addressing (something@me.domain.com => me@domain.com).

Can’t say I’m a fan of the webmail, but I’ve only used it when I’m without an imap client.

Just a small correction, it’s not a homegrown thing, but a CloudFoundry deployment with a bunch of tooling around it

Ah yes I missed that bit, thanks for the correction.

I came here to say exactly that - it almost feels like that episode was prompted by this story.