If you run iwss then out of the box it will not allow pop3 connections for email so we need to allow this port to be opened in iwws console
This is down to pop3 not being allowed through the server. Follow these instructions to fix.
Log into console
Select HTTP, then go down to access control settings
On the right hand side under “port” enter “110”. Make sure action is set to “allow”. Then click Add.
Then click save.
Then after about 10 mins the policy will apply.