i think the idea was, to block port 25 of the user. so the user (which could use a unsecured mailserver) cannot used as an open-relay/proxy.
-steven > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Behalf Of Daniel Lorch > Sent: Monday, August 04, 2003 3:42 PM > To: [EMAIL PROTECTED] > Subject: Re: [swinog] Freesurf Range poluted by open relays?!? > > > hi, > > > Filtering outgoing port 25 makes it so that these "visitors" to the > > net can't just connect and spew out thousands of spam messages, > > like they often do with these free services. They can send e-mail > > via the provider's mail servers, where presumably there will > > be some kind of restriction on the amount of e-mail that can > > be sent per unit of time. > > I don't know whether Freesurf implements rate-limiting (which is > an entirely > different issue), but the only way of using Freesurf's SMTP is to > use Freesurf > as your ISP (as far as I'm aware). > > > I hope that helps... > > I'm afraid I still don't understand. What does "Blocking port 25" > refer to? > a) Disable the service entirely > b) Implement some sort of rate-limiting > c) Use a port different to 25 > > Sorry to nit-pick, but I'm sort of fed up with people claiming > that "blocking > port 25" will solve all your problems. No more abuse! - > Obviously, because no > one can send mails anymore. No more Spam! - Obviously, because > you can't rece- > ive any mails anymore (not even legit mails). Woohoo (?). > > -daniel > > ---------------------------------------------- > [EMAIL PROTECTED] Maillist-Archive: > http://www.mail-archive.com/swinog%40swinog.ch/ > ---------------------------------------------- [EMAIL PROTECTED] Maillist-Archive: http://www.mail-archive.com/swinog%40swinog.ch/
