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3g, open gate plus and smtp port

  • December 11, 2014
  • 3 kommenttia
  • 7 katselukertaa
M
Savumerkittäjä
HI,

Open gate service reads "Kiinteä julkinen IP, kaksisuuntaisuus ja avoimet portit"

http://www.sonera.fi/etsi+apua+ja+tukea ... /open+gate

Just rang customer service port 25 and port 53 are closed.

I had a @450 service and all ports were open. Now I must move my mail server outside of the network behind the 3g modem. Is there some other way around this?

Scott

    3 kommenttia

    A
    • Anonymous
    • December 18, 2013
    Hi ScottA!

    Sonera Opengate APN allows traffic all others ports, but TCP port 25 (SMTP) and UDP port 53 are closed because of security issues, that true. I am sorry but there is no way to change this from APN service.

    I guess the only way is to change ports from your mail server.

    Regards,

    VesaN
    A
    • Anonymous
    • December 18, 2013
    ScottA kirjoitti:
    Now I must move my mail server outside of the network behind the 3g modem. Is there some other way around this?


    The only way I can think of is using VPN.

    VesaN kirjoitti:
    I guess the only way is to change ports from your mail server.


    This is not feasible, as it would require reconfiguration of all email servers in the world, too.
    A
    • Anonymous
    • December 22, 2013
    Got around the problem by using mail.inet.fi for outgoing mail.
    Incoming mail now goes to a gateway/server outside of my network and from that server to my mail server on a port other than port 25.

    I think port 25 should be open for OpenGate customers. I can understand if it is closed for a user who gets a new ip address every time they get a new connection . With a fixed ip address Sonera would be able to investigate and see who is abusing port 25.

    Scott
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