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| Thread ID: 67773 | 2006-04-05 08:41:00 | xtra to block smtp traffic | whichwayisup (10136) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 444192 | 2006-08-08 10:18:00 | it is not a major problem, just send through smtp.xtra.co.nz or set up SSL secure SMTP I might add there is a very good reason for blocking port 25 and other ISP's do this as well. |
Safari (3993) | ||
| 444193 | 2006-08-08 12:59:00 | I might add there is a very good reason for blocking port 25 and other ISP's do this as well. & just not in NZ they do it in the USA & in Australia they do it as well & people have the same problem as well. Plus there is ways you can get around as well. |
stu161204 (123) | ||
| 444194 | 2006-08-08 13:14:00 | Hi all, just letting y'all know that TeleCON just blocked all my BUSINESS customers too (and yep, they all have static IP's *AND* were running mail servers)...It was well publicised, it's hardly practical for them to spend days probing every IP address to see if it happened to have a mail server behind it (whether or not it was actually up at the time they checked). Wanna hear the *fun* part? TeleCON (sounds more appropriate than XTRA doesn't it?) include an interesting 'gotcha' on their port25 opt-out... The new / improved terms and conditions includes the clause: "Xtra expressly reserves the right to filter or block port 25 for all customers at anytime with no additional notice."I'm surprised they bother to mention this specifically but regardless there would be a "they can do anything to anyone" outclause anyway - and rightly so. Just today I had to put blocks in on a customer of ours who's compromised box was sending out 1000's of spam messages. I deal with busted MS SBS2K3 servers with broken POP3 connectors on a weekly basis that need to be segragated off the net for the benefit of the wider internet community. Even "static" IP ranges in NZ are often listed in dynamic or portable ranges worldwide anyway - increasing the chances of messages from private mailservers being tagged as spam. It's a much more sensible approach to use ISP's mail servers and configure the business mailserver as a smarthost or equivalent. The place I work for block port 25 on all our International and National circuits for people in dynamic IP ranges. We don't block our static customer IP ranges, but I will block individuals if the need arises (as mentioned above). Furthermore, I've setup all my mailservers to auto-respond to anyone sending an email from either XTRA.CO.NZ or TELECOM.CO.NZ. To the former, the email simply explains my opinion and position to the sender. To the latter, it politely informs the sender that his / her email is summarily blocked and to perhaps try calling me on my almost zero coverage cellular phone. When that fails, try sending a snail mail. Perhaps someone should rename XTRA to .... "LESS"Obnoxious, in violation of RFC's and just plain stupid. I hate Xtra as much as the next guy (probably more as I have to deal with them in a professional capacity) but this is daft. You are making their customers suffer the ISP's policy decision - 99% of which don't know or care about it. I guess if it's your private mail server then do what you want (of course the rest of the net has to suffer your fallout), if it's impacting customers God help you. I hope this practice loses you business. Thanks for signing up and resurrecting a 4 month old thread with this staggering information. :thumbs: |
ninja (1671) | ||
| 444195 | 2006-08-08 13:21:00 | Oh nooooooooooooooooo.....violation of RFC's???? Heaven help us all, For the love of God, WEEEEE didn't know, we didn't know..... |
Metla (12) | ||
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