Re: [swinog] Re: blocking ports?

2007-04-12 Diskussionsfäden Scott Weeks
: if(windows) then block else allow? :) This would be my preference. >;-) I doubt my pointy-clickey co-workers would like that. I'm seen as weird here since I despise Micro$loth and love *nix. scott --- [EMAIL PROTECTED] wrote: From: Daniel Lorch <[EMAIL PROTECTED]> To: [EMAIL PROTECTED

Re: [swinog] Re: blocking ports?

2007-04-12 Diskussionsfäden Peter Bickel
Scott Weeks schrieb: 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

Re: [swinog] Re: blocking ports?

2007-04-12 Diskussionsfäden Daniel Lorch
Hi > 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 ha

Re: [swinog] Re: blocking ports?

2007-04-12 Diskussionsfäden Scott Weeks
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 ju

Re: [swinog] Exchange Servers having problems with SMTP 4xx temporary failures?

2007-04-12 Diskussionsfäden Adrian Ulrich
Hello Benoit, > Have other seen this behaviour of exchange servers Yes. One of our MX servers somehow managed to loose the connection to the ldap server (didn't dare to re-establish it) and only returned (valid) tempfail messages. Sending mails from Exchange (internal messaging system) to this M

Re: [swinog] Re: blocking ports?

2007-04-12 Diskussionsfäden Daniel Kamm
On Wed, 2007-04-11 at 14:31 +0100, jonathan wrote: > 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. Well, preventing customers to use Windows(tm) box

[swinog] Exchange Servers having problems with SMTP 4xx temporary failures?

2007-04-12 Diskussionsfäden Benoit Panizzon
Hi all During the last few days spent tracking strange problems with exchange servers from different companies. From my actual point of view exchange server seam to have troubles with tempfail messages. They notice a 4xx error, tryes again a few times and then occasionaly returns the email to