I run the office lotto syndicate.
I get a results email that I want to detect via a filter, and forward to a group containing the lotto syndicate members.
Is this possible? I can't seem to figure it out..
Not directly, no.
You need to set up a mailing list, such as on Google Groups. (Really it could be any of a number of services. The key is that there is a single email address to use that will send all messages sent to it on to member email addresses.)
However, there's a bit of setup involved and your syndicate members will need to do a little work as well.
This is how I'd do it:
That should be it. You don't need to use Google Groups, obviously. There are other mailing lists/forwaring services out there. (Personally, I'd probably use an autoforward mailbox provided by my ISP. No need for invites there; I can add the addresses that I want.) The key is that you need to be able to prove to Google that the mailbox to which you want to forward messages is under your control.
1You may need to add
firstname.lastname@example.org to the group so that the confirmation code gets sent to the group. After confirmation, you can remove it. (h/t to Emil.)