listadmin,
Can you PLEASE, PLEASE find *any* other blacklist than manitu? This asshole's method was ok a dozen years ago; these days, with hosting sites hosting tens or hundreds of thousands of domains, with too many running Windows, and so infected and sending out spam. They then send all mail via one mailhost, with the result that those of us with *no* spam coming out are frequently blocked.
This ain't the first time for me with this jerk, either. A few years ago, Cogeco in Canada was using him, and on and off for *months* I was blocked from exchanging email with an old friend... because I was mailing from Roadrunner in Chicago (hosting hundreds of thousands of households), until my friend dropped Cogeco.
mark, who is wondering if this will be blocked