would be a great addon to add custom blocked ip´s, for example, i recently installed magicspam on a new server and is blocking all emails, but i saw 3 spam messages who passed my actual settings.. i cant modify my settings because i will be blocking servers who send good emais.. but i wish to be able to add those spammer ips.
hope you can add this for a future soon release

and remember to add the custom rejected messages... and maybe we can start translating the module and rejected messages, to have more people using magicspam.
i can help to translate magicspam to spanish..