How are ICO teams using Slack to collaborate with external users?

[gentil]

This isn't crypto specific, but every ICO project seems to do it, and I can't work out how. I reached out to Slack but heard nothing back

I would like is to allow users from any domain to sign up to a Slack team

What other teams are doing is publish a url eg https://slack.wagerr.com/ - once an email is submitted the person gets an invite emailed to them automatically and they can sign up.

But inside my Slack I only see the option of inviting people from my domain or specified domains. I don't see any option where I can publish a url any auto send an invite to someone via email

[satoshforever]

You need to create a separate Slack team. This could help you: https://get.slack.help/hc/en-us/articles/212675257-Join-a-Slack-team

[WindingTree]

This isn't crypto specific, but every ICO project seems to do it, and I can't work out how. I reached out to Slack but heard nothing back

I would like is to allow users from any domain to sign up to a Slack team

What other teams are doing is publish a url eg https://slack.wagerr.com/ - once an email is submitted the person gets an invite emailed to them automatically and they can sign up.

But inside my Slack I only see the option of inviting people from my domain or specified domains. I don't see any option where I can publish a url any auto send an invite to someone via email

You just need to get an invite link to your channel.

[gentil]

thanks for the responses - I've finally got it working 

[WindingTree]

thanks for the responses - I've finally got it working 

No problem!