I've got a new problem with my mailing list. I run a local announcements/trade list that should be of no interest to non-locals.

I started seeing warnings from Yahoo about users marking messages as spam.. (I'm subscribed to Yahoo's Antispam Feedback. I never got other feedback loops from others - like Microsoft - to work). The messages that were being marked as spam by users were the confirmation emails sent by mailman to confirm a signup. To avoid having Yahoo shut down the list as spam (for its subscribers), I set the subscription to be approved by admin, so I could review who was trying to sign up.

More and more now I'm seeing what appears to be spammers trying to subscribe, 
but I can't be sure. I'm seeing emails like:

 hirofeet0...@yahoo.co.jp  (doesn't seem local)
blvckp...@gmail.com    (not many use user names such as that)
fsafwcasgsa...@gwqc.com  (obviously not real - couldn't find domain with 
minimal searching)

Plus some that could be local but how would I know.

I could take off the "approval by admin" for subscription and just deal with 
anyone that is a problem afterward, but I do worry that they may be harvesting emails 
from subscribers, which are available in the reply-to headers.

Don't know if there's anything I can do. Anyone else dealing with this?

thanks. Jim

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