[olug] ISP email filtering etc...

[jman at miwire.com]

   Just looking to query thoughts about what an ISP does to maintain email
   services.

   Sure there are spam filters, grey-listing and rejects.  What are the
   trends? Is an email domain rejected because it's IP doesn't resolve?
   What is it resolves, do you require an SPF How much of your customers
   email do you store in spam? Do you keep it there indefinitely?

    Thanks for your thoughts....in advance.

   John