Send As From Google Group

[pftq]

Below are steps so that, from your personal email account, you can "send as" from the same email address as that used in a Google Group under a business account.  The information is not really spelled out anywhere, so I'm writing this down for future reference.

1.  Login to the business account primary email (the owner / admin).
2.  From Gmail, go to Settings > Accounts and Import > Send mail as.  Add the Google Group address here once.
3.  Login to your personal email account in Gmail, which should also be a member of the Google Group to receive messages.
4.  Go to Settings > Accounts and Import > Send mail as.  Add the same Google Group address here again.

For the login credentials, you'll need to use a user email (non-Google group) from the domain of the business and for password, it needs to be an app password generated specifically for this.

[yh]

In your post about Quantopian you argued one shouldn't rely on platforms - I completely agree. But why then use Gmail? They own your emails, and trivial stuff like "Send As" is notoriously awkward there. I recommend thinking about going back to basics; I use Pine for 27 years straight now, on my own mail server, and haven't felt the need to even try gmail. To do "Send As" in Pine you just edit the "From" address to be whatever you'd like

[pftq]

That only works if you don't care about your emails actually being received.  Many major email providers will flag it as spam or reject it for not coming from a known provider.