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Forums › New Zealand Broadband › Port 25 blocking.


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Topic # 9670 4-Oct-2006 02:19
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Has anyone been in the position where their ISP changed to another one based on the plan having free national traffic, only to once on that ISP suddenly find that access to their mailserver on port 25 was now blocked by the ISP, however there was no mention of this crippling restriction on the ISPs site for the broadband connection at all?

Would you assume that an internet connection was just that, a connection to the internet?

Would you think it fair to disconnect from the ISP without penelty if they were not willing to allow access to port 25 be reinstated?

And for those that ask, why dont you use the ISPs email server, thats all great, except that most of my mail to hotmail goes into the bulk mail folder of the recipiants since the sending MTA doesnt have anything to do with my domain, correctly so, the antispam filters are treating the mail as spoofed.  




Richard rich.ms

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Reply # 47477 4-Oct-2006 08:31
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Was the change initiated by the ISP or you? In any case, some ISPs allow port 25 traffic based on requests. If you know what you are doing and can justify that the ISP might let you use it.

But yes, what part of Internet Service Provider don't they know, to block any port?




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