how to moderate a user's first 10 posts?
 

I've had an overwhelming spam issue the last few weeks where about 9 out of every 10 new members is a spammer. It's tedious to have to check their IP's and everything to approve them first, and even then sometimes they are still a spammer.

How can I set it so new users will have to have their first 10 posts moderated?

And the captcha doesn't work. I have it on the highest possible setting of difficulty but these spammers use programs now where they have a human manually enter the captcha information. My forum has gotten to be too much work because 90% of the time is spent fighting spam. I hate it.

Look around the Mods area.
I think i seen one, when I was looking tho the mods.

So there's no built in setting to do this?

There is a built-in process to do so, but not a built-in setting.

Go to Usergroup Manager > Add New Usergroup
Create Usergroup Based On - Registered Usergroup > Go
Give it a new name - Whatever
Create Permissions Based off of Usergroup > Registered Usergroup
Save

Now make a Promotion (Usergroups > Promotions)
Add New
Usergroup - Registered Users
Posts - 10
Promotion Strat - Posts
Type - Primary
Move to - Whatever
Save

Usergroup Manager - go to edit Registred Users
Follow Forum Moderation Rules - No
Save