said by supergeeky:I've found that port 25 is always blocked on Comcast residential accounts - only on the business accounts is it allowed... in which case, perhaps the letter is in error?
I've tested from my sister's Comcast connection in Oregon, from time to time, and never found their connection to have a port 25 block. Per their own policy, Comcast only blocks port 25 out on a case-by-case basis.