North American Network Operators Group|
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Re: DNS Hijacking by Cox
* Sean Donelan: > On Sun, 22 Jul 2007, William Allen Simpson wrote: >> Comcast still blocks port 25. And last week, a locally well-known person >> was blocked from sending outgoing port 25 email to their servers from her >> home Comcast service. > > MSA port 587 is only 9 years old. I guess it takes some people longer > than others to update their practices. You missed the "to their servers" part (I don't think it's singular "they" 8-). At the intra-ISP level, submission vs. SMTP does not really matter because it's all local policy. If they block her on 25/TCP on their own servers, they can easily block her on 587/TCP, too.