Port 25 opt out not working

Forums › Spark New Zealand (including Skinny and BigPipe) › Port 25 opt out not working

nitrotech

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#39536 16-Aug-2009 10:11

I have just got my broadband returned to telecom from Vodafone - believe it or not the big time plan is significantly faster than my capped plan with vodafone.

Everything is working fine except I cannot receive emails on port 25 - I have opted out, my username and password is correct in the router, i've rebooted multiple times but still no luck.

I have spoken to telecom support people about this and they can't see any problems.

Anyone got any ideas?

freitasm

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#247127 16-Aug-2009 10:21

Are you using a static IP address? Have you tested from another network, using telnet to connect to your port 25?

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#247136 16-Aug-2009 10:34

nitrotech: I cannot receive emails on port 25

Typo? You mean send, right? as in SMTP? otherwise if you really are trying to recieve something on port 25 then you'll likely have other issues around NAT/Port forwarding to look at before someone/something out on the net will be able to connect to your machine on port 25 from the outside.

davidcole

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#247140 16-Aug-2009 10:42

I've not found any opt out procedure from Telecom, but found it easier to use other ports. Some hosters allow port 26 for smtp, 465 for SSL SMTP, or 563 to TLS SMTP. You might have to find a combination that works for you.

I've just gone through this exercise myself moving from another hoster (that accepted port 26) to google apps (gmail).

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nitrotech

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#247141 16-Aug-2009 10:42

Can't get a static IP on the big time plan (as is my understanding) I use DNS Exit to resolve the domain names to my IP address.

I haven't specifically used telnet as all other services work correctly, HTTP, HTTPS, Outlook Anywhere, PPTP VPN all fine off site.

I have signed up to DNS exit's port changing service which now delivers my mail on port 26 and that works just fine.

It's the telecom port 25 filtering that's causing me grief.

nitrotech

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#247142 16-Aug-2009 10:45

Opt out page is here https://selfservice.xtra.co.nz/live/selfservice/serviceprofile/OpenPort25

RedJungle

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#247143 16-Aug-2009 10:50

Is it possible that the opt out only covers outbound connections, and not inbound? i.e. the typical scenario for SMTP? have you attempted to send via port 25 at all?

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nitrotech

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#247145 16-Aug-2009 10:52

RedJungle:
nitrotech: I cannot receive emails on port 25

Typo? You mean send, right? as in SMTP? otherwise if you really are trying to recieve something on port 25 then you'll likely have other issues around NAT/Port forwarding to look at before someone/something out on the net will be able to connect to your machine on port 25 from the outside.

Nope happy to forward send email to xtra's smtp server but want to receive emails direct to my exchange server via a dynamic dns service.

Cheers

nitrotech

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#247146 16-Aug-2009 10:56

RedJungle: Is it possible that the opt out only covers outbound connections, and not inbound? i.e. the typical scenario for SMTP? have you attempted to send via port 25 at all?

Hear what you are saying but even though i'm opted out I can't do either, I have tried sending directly and it won't work.

When I was wiith xtra perviously (eg. about a year ago) the opt out meant that I could both send and receive.

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#247149 16-Aug-2009 10:59

nitrotech:
When I was wiith xtra perviously (eg. about a year ago) the opt out meant that I could both send and receive.

Sounds like you're on to it. My only experience was the same, a few years ago on Xtra - and it worked fine then.

Might be time to log a fault. Hopefully one of the Telecom guys will see this on Monday ;)

freitasm

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#247152 16-Aug-2009 11:08

nitrotech: I haven't specifically used telnet as all other services work correctly, HTTP, HTTPS, Outlook Anywhere, PPTP VPN all fine off site.

It's the telecom port 25 filtering that's causing me grief.

When I mention Telnet I meant you would be connect to another network (not Telecom) and use Telnet to open a connection to port 25 (not to the Telnet port). This will definitely tell you if other networks can or cannot see your port 25.

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nitrotech

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#247540 17-Aug-2009 11:17

When I mention Telnet I meant you would be connect to another network (not Telecom) and use Telnet to open a connection to port 25 (not to the Telnet port). This will definitely tell you if other networks can or cannot see your port 25.

Confirmed I cannot telnet to port 25.