Ip's clean but from China. Are there additional problems mailing to AOL etc from China IP's? Blocks? First was getting 421's 50/50 - 421 4.4.2 mtain-dg05.r1000.mx.aol.com Error: timeout exceeded 421 mtain-dg06.r1000.mx.aol.com Service unavailable - try again later Just sending 1 msg per IP. Tried again few hrs later - now all timeouts. Can this be normal as part of warming up or not?