On a weekly occurance, I have been having to remove my local IP from the Blocked Address list within the Anti-Spam tab on Exchange Server 2010. I am not sure why this IP keeps recurring. Every Monday it seems to recur with an expiration date and time, I usually find this prior to it expiring and correct. I normally only need to remove it from the list and then exchange works fine and no emails are being bounced back. Does anyone have any ideas as to why my local IP is being blocked? This causes many outside emails to get bounced back and many more headaches.
Thanks for the help in advance.