Some spam got through my filter, but I haven't been able to decode this obfuscated address:
k?fp9w5r2xoim7j963a4c4tz610zrbxjg9pf4i753l5yi53si5p55rsufuh56t8qsqe91737rg2rokn82y04z2d5akmx9f6740kwk
It came directly after an http:// and website (not listed here for obvious reasons). I think it's some kind of PHP injection, but it didn't decode completely for base 64. It also may be using cyrillic (hence the question mark as well) but I am not sure.
I have more examples from the same email.
Any assistance appreciated.