Ok, will try to explain. What basically happens is a user registers with the website and their details are added to a database but their account is not active using a simple 0 = unactive, 1 = active column. Within the confirmation email which the user receives is a link, containing a unique hash, that they have to click or visit. This then goes to a verfication process that checks the hash with the user's details and if they match, active is set to '1' and the account is ready to use.
The link I'm using is causing the spam filter to trigger so I'm just wondering if there's any way to get around this and still have the link in the user's confirmation email. Sorry I'm at work at the moment and don't have access to my computer to post any more code but I'll check at home this evening to see if anyone needs to see more to help.