9 Aug
2006
9 Aug
'06
7:48 p.m.
Actually there can be false positive. ISP's who put address blocks into "dialup" blocks which have the qualification that the ISP is also supposed to only do it if they *don't* allow email from the block but the ISP's policy explicitly allows email to be sent. They have a default port 25 filter that will be turned off on request. i.e. they allow direct out going email on request. The said ISP *thinks* they are doing the right thing by listing the block when in reality they are lying by listing the block. Mark