Jonathan Tripathy wrote: >> Any ISP that does *not* block port 25 for residential service is a part >> of the spam/zombie problem, and if yours doesn't, you should complain, >> loudly if necessary, and encourage them to block it.
> Every ISP in the UK? Every one that is not, at a bare minimum, closely monitoring it for botnet traffic *and* *immediately* shutting down infected IPs, then yes, absolutely... But, since most residential users have no need to send/receive email directly over port 25, it is *much* easier (and more effective) to just block it for designated subnets, so they only have to worry about monitoring those that they *know* will be using it (because they specifically asked for it). > I beg to disagree. Blocking port 25 is a violation of Net Neutrality. Ridiculous, net neutrality has nothing to do with service level agreements. Residential service does not in any way, shape or form equate to requiring full SMTP services to be able to run your own full blown mail server, nor does denying access to port 25 for 'normal' residential users impact their ability to access the internet or send/receive email. If you want that level of service, upgrade to a service that provides it, and that will be at least minimally monitored for abuse (it is in the ISPs best interest to avoid getting their IP addresses on blacklists).
