Rik Tindall wrote on 16/05/15 13:05:
I am sure many of you have had to deal with Spark's port 25 block, a
spam security measure that they implemented late last year. The
problem is how to send email from a different host's email account,
using email client software, while connected to Spark network.
Spark's advice page says they will unblock port 25 for the local
network address upon request. If that network is only on during
business hours, which at least makes it invisible to attack most of
the time, is there any great risk that list members have observed from
getting port 25 unblocked?
http://www.spark.co.nz/help/internet-email/plans-services/port-25.html
This has been a point of difference between Residential and Business
class ADSLs on xtra for a very long time.
Our wiki has a first mention in March 2009, so its not the last year.
However it has never been unilaterally applied... instead its some but
not others.
Functionally there is no difference between a business and a residential
internet ADSL... they're all built on the same platform and use the same
infrastructure.
So the ISP has to differentiate them in some way, and xtra decided in
2009 that home users shouldn't be running mail servers, and that they
shouldn't be sending email on port 25 to anything other than xtra's
smarthosts.
Why are you still on xtra/spark anyway? Their pricing is ludicrous and
they don't have IPv6 and you pay extra for a static v4 IP.
To answer the question, try this link
_http://www.spark.co.nz/help/internet-email/plans-services/port-25/_ and
click the big blue "unblock port 25" button, wait 48 hours then reboot
your router.
--
CF
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