Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


55 posts

Master Geek


Topic # 14355 29-Jun-2007 08:43
Send private message

This has happened a few times before. Maybe vodafone should get ihug to employ someone who knows what they are doing.



This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:

  xxx@xxx.com
    SMTP error from remote mail server after RCPT TO:<xxx@xxx.com>:
    host av3.tnz.myschools.net [125.236.44.17]: 554 Service unavailable; Client host [203.109.136.106] blocked using dul.dnsbl.sorbs.net; Dynamic IP Addresses See:
    http://www.sorbs.net/lookup.shtml?203.109.136.106

------ This is a copy of the message, including all the headers. ------


Create new topic
BDFL - Memuneh
61506 posts

Uber Geek
+1 received by user: 12225

Administrator
Trusted
Geekzone
Lifetime subscriber

  Reply # 76277 29-Jun-2007 09:08
Send private message

This tells us that the Paradise server is considered source of spam. The server itself is not broken but the admins need to work to get this flag removed. Mind you the list is maintained by third parties outside of IHUG control.






55 posts

Master Geek


  Reply # 76280 29-Jun-2007 09:28
Send private message

The server itself is not broken but the admins need to work to get this flag removed. Mind you the list is maintained by third parties outside of IHUG control.


Yeah, as I understand it they need to use a fix ip address instead of addresses in a dynamic range.
Lots of ISPs seems to manage without this trouble, so why are ihug different ?


BDFL - Memuneh
61506 posts

Uber Geek
+1 received by user: 12225

Administrator
Trusted
Geekzone
Lifetime subscriber

  Reply # 76281 29-Jun-2007 09:31
Send private message

Your understand is not completely correct. The "dynamic IP address" problem is relevant for users running SMTP servers from home for example, on an IP range that is configured as dynamic. In this case some lists block those automatically.

The ISPs use static IP addresses for their servers. The lists are populated by submissions of spam samples, and from time to time they block an IP range or a single server, not necessarily only based on an IP being dynamic or not.

There are more factors there you should consider. Sometimes it is something they can't do much...










55 posts

Master Geek


  Reply # 76284 29-Jun-2007 09:41
Send private message

...so if a customer needs email from their ISP, IHUG is not the right choice ?


Hawkes Bay
8477 posts

Uber Geek
+1 received by user: 5

Mod Emeritus
Trusted
Lifetime subscriber

  Reply # 76291 29-Jun-2007 11:31
Send private message

PhilM: ...so if a customer needs email from their ISP, IHUG is not the right choice ?


My mail server (shared - US based) is blacklisted on SORBS, and Telecom simply blocks all email from my domain (well.... from my mail servers IP anyway). When I need to send email to Telecom or Gen-i addresses, I have to switch to another account I have set up, with xtras smtp for the outgoing mail.

The problem is not with Telecom, and not with my domain. Its with the Spam Blacklisting organisation blocking my webhosts shared server IP.

Moral of the story: Doesnt matter where the email is served up from, a third party service could cause the blocking, and just about ALL mail systems will have to cope with blocking issues (inbound or outbound) at SOME point....







BDFL - Memuneh
61506 posts

Uber Geek
+1 received by user: 12225

Administrator
Trusted
Geekzone
Lifetime subscriber

Reply # 76292 29-Jun-2007 11:34
Send private message

PhilM: ...so if a customer needs email from their ISP, IHUG is not the right choice ?



As Tony said... At some time in the last few months we saw Xtra, Slingshot, Paradise being blocked. Even if you run your own email server on a static IP address it can be blocked.

It's not the ISP's fault, but the way blocking works, relying on third parties.





2573 posts

Uber Geek
+1 received by user: 357


  Reply # 76303 29-Jun-2007 13:19
Send private message

freitasm:
It's not the ISP's fault, but the way blocking works, relying on third parties.



The ISPs do have other options. It would be ludicrous if ISPs in NZ are blocking each other based on some 3rd party blacklist.

Ben

317 posts

Ultimate Geek

Trusted
Vend

  Reply # 76315 29-Jun-2007 15:51
Send private message

Ludicrous or not, it's what they do.
Years ago I managed to get a company mail server blacklisted by misconfiguring it as an open relay.  Even though no spam went through it.

Beyond a complete redesign of SMTP (e.g. verified senders, micropayments) there's not a lot more that can be done.  3rd party blacklists are the best of a crap list of options.

Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.