: but still voting to block mail from dialup and adsl ranges
On DHCP DSL ranges. I see some businesses that have a legitimate email server on statically assigned DSL ranges... scott --- [EMAIL PROTECTED] wrote: From: "Schmid" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]> Subject: Re: [swinog] Re: blocking ports? Date: Fri, 13 Apr 2007 10:32:28 +0200 isn't the most spam comming via compromized Computers ? adsl Dynamic or dialup user you should never trust them if the say the dont spam. they have to send mail the way smtp is thought for, that means send email to the smtp relay next to you. prevent him to send email via any other relay. if this would be consequent done by all ISP most of the spam would dissapear, and we could concentrate to prevent abusing other system for doing their harmfull work. Funny thing is one ISP is switching off his SMTP relay telling the client to use other smtp relay in the wild and call that a first action according to the "stop spam" campaign. another one is blocking port25 und force the user to use the ISP?s SMTP Relay and even explain this is done due to the "stop spam" campaign how to believe anything ? confused .... but still voting to block mail from dialup and adsl ranges ;-) ---------- Original Message ---------------------------------- From: "Scott Weeks" <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED], [EMAIL PROTECTED] Date: Thu, 12 Apr 2007 11:19:56 -0700 > > >Hello, > >: So if a customer proofs that he is able from a technical >: Point of view to operate an mail server in a secure manner >: and assures not to abuse email for spam then it's not >: acceptable that an ISP block anything to him. > >This is what I was saying to the guys here at my work. We just need a small >proof that the customer isn't a spammer and we open it up. However, most of >our customers are less-technical savy home folks. Did you have to prove to >your ISP that you weren't spamming? If so, how did they have you do that? > >Thanks, >scott > > >--- [EMAIL PROTECTED] wrote: > >From: Peter Bickel <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED], [EMAIL PROTECTED] >Subject: Re: [swinog] Re: blocking ports? >Date: Thu, 12 Apr 2007 12:03:28 +0200 > >Scott Weeks schrieb: >> >> >> : You'd be amazed how many companies operate their own >> : mail servers, even behind dynamic addresses >> >> I'm speaking with guys in my company on an issue and part of the discussion >> has to do with me saying no one runs a mail server from behind a dynamic IP >> addresses. Other than just your experiences, does anyone have pointers to >> data on folks that do this? >> >> scott > >Hi Scott > >we do exactly this for IDV & Network Consulting. We operate our own >Mailserver >(Solaris with sendmail and iamp) in our internal Network which is >connected to >Cablecom (DHCP ;-)) In addition we have some Maschines in a hosting >environment >which have of corse fixed IP addresses which we use to relay to the outside. >All hosts use Solaris and sendmail and are protected with IPFilter with very >restrictive Rules. Incomming email is going through the external hosts and >an IPIP Tunnel directly to the internal mail server. > >We really don't want to be dependend on an ISPs email SETUP. DNS is the >same which helped me in the past a lot where several customers weren't able >to use the net everything worked for us. So if a customer proofs that he >is able from a technical Point of view to operate an mail server in a >secure manner and assures not to abuse email for spam then it's not >acceptable >that an ISP block anything to him. >> >> >> >> >> --- [EMAIL PROTECTED] wrote: >> >> From: Markus Wild <[EMAIL PROTECTED]> >> To: [EMAIL PROTECTED] >> Subject: Re: [swinog] Re: blocking ports? >> Date: Wed, 11 Apr 2007 19:26:39 +0200 >> >> Jonathan, >> >>> Sorry but I disagree with Per. ISPs have a duty to prevent email >>> Spam which is a terrible curse for us all. If they decide that >>> blocking port 25 outbound will help then they should do it. >>> >>> If you are a user, why can't you use the ISPs relay server? If you >>> are a provider you ought to have your own mail server on a fixed IP >>> address. >> >> You'd be amazed how many companies operate their own mail servers, even >> behind dynamic addresses (in which case they usually use some mailbox >> polling mechanism to feed their server from mail from the outside), but >> send outgoing mail directly with SMTP. >> >>> Of course, one day we need a better protocol than SMTP (*Simple* Mail >>> Transfer Protocol) which was never meant as a global email solution. >>> But until then we have to do something to stop people abusing it. >> >> But by killing the payload, not the messenger, please... >> >> Cheers, >> Markus >> _______________________________________________ >> swinog mailing list >> [EMAIL PROTECTED] >> http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog >> >> >> _______________________________________________ >> swinog mailing list >> [EMAIL PROTECTED] >> http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog > > >-- > > >Gruss > Pitsch > >__________________________________________________________________________ > >Peter Bickel e-mail: [EMAIL PROTECTED] >IDV & Network Consulting Telefon: +41 1 853 24 16 >Gumpenwiesenstrasse 38 Fax: +41 1 853 27 04 >CH-8157 Dielsdorf Mobile: +41 79 666 15 50 > >__________________________________________________________________________ > > > > >_______________________________________________ >swinog mailing list >[EMAIL PROTECTED] >http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog > ________________________________________________________________ Sent via the WebMail system at mgz.ch _______________________________________________ swinog mailing list [EMAIL PROTECTED] http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
