The information in this question
Choose which Google Account when accessing Google Groups?
is no longer current
I am signed into Google and in Gmail click a link to an invitation made to another of my email addresses. I tried adding that email to the Gmail account as an alias, but the Google group in question did not let me in.
Must I ask the owner to resend to the Gmail account or can I sync/alias the other address to my Google account? I prefer to not use my main Gmail account for the list in question.