Verifying whether an email address is a member of a Yahoo Group
I have a requirement to be able to programmatically verify whether an email address is a member of a Yahoo Group on which I am a moderator. This might be an email-only membership, i.e. no corresponding Yahoo ID. Are there any new APIs which can do this for me?
There are other unpleasant workarounds, e.g. a script which periodically downloads the membership list of the group, or hooking into the emails that are generated when a member joins/leaves a group. The first is vulnerable to 999 errors, and the second to spoofing.