# Good use cases for groups (to better understand groups vs categories)

**URL:** <https://meta.discourse.org/t/good-use-cases-for-groups-to-better-understand-groups-vs-categories/62875>\
**Category:** Community Building\
**Created:** [Maio 17, 2017, 1:39pm UTC](https://meta.discourse.org/t/good-use-cases-for-groups-to-better-understand-groups-vs-categories/62875 "2017-05-17T13:39:16Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![tophee](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/tophee/32/73406_2.png) [@tophee](https://meta.discourse.org/u/tophee)\
**Post date:** [Maio 17, 2017, 7:49pm UTC](https://meta.discourse.org/t/good-use-cases-for-groups-to-better-understand-groups-vs-categories/62875/6 "2017-05-17T19:49:08Z")

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> [@LeoMcA](#):
>
> “Custom incoming email address” for the group. This allows anybody to email that email address,

Great idea!

> [@LeoMcA](#):
>
> with only that person, the group, and anyone invited, able to see the discussion.

Forgive my lack of imagination: how exactly does this work in practice? I understand that all group-members can reply to a group message and see the replies from others (like a group chat) but what about the external person who sent the email? S/he’s also in the loop (and receives each and every message via email?)?

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