Emails for subscriptions

After my users subscribe to a forum, they receive an email notification when a new posting is made. They are unable to follow the link from the email to the new post.

When I receive an email notice from you, the hyperlink takes me directly to the post, even if I am not logged on. In order to reply, I have to login.

I would like that setup for my site [deaconworld.net].

File [1] is a screenshot of the email a user receives
File [2] shows what my users see when the click on the "view post" hyperlink inside the email
File [3] is the url that is embedded in the "view post" hyperlink from the user's email
File [4] is an email I received from you
File [5] is the url from the "view post" hyperlink in your email
File [6] is what the user sees when the click on the "view post" hyperlink inside your email

I need my site to function the same way yours does.

When a user receives an email notification that a new post is available, they should be able to follow the hyperlink directly to the post.

I've already asked my service provider if the problem was theirs. They ran a number of tests and none of them generated any errors.

How do I configure my site so that my users go directly to the post?

mark