Hi Apologies if these are stupid questions, but I cannot seem to find the answers: How do I get Spamassassin configured for rewrites in client accounts? Is there any downside to using Sender Verification Callouts ? How is this different from sender verification? If I want to whitelist IP's when using RBL's, can I whitelist an entire block with wildcards? If so, what would be the proper way to write this? Where / how do I set up root cronjobs or find the root crontab? Thanks for any advice or assistance.