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  1. #1
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    Burst.net blocking incoming port 25?

    I have a VPS with burst.net that I want to use as a backup mx server. Strangely INCOMING port 25 is blocked and outgoing isn't.

    I put in a ticket with support, but I still have another ticket open from 24hrs ago that still hasn't been answered.

    Anyone have any experience with this issue?
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  2. #2
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    Have you checked your server to see if it has any firewall rules in place?
    iptables, csf etc..

    Is the mail server configured correctly?
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  3. #3
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    Yes, for testing I disabled the firewall and tried to telnet to port 25. I received no response. Changed the port to 2525 and tried to telnet again, works just fine.

    Changed back to port 25 and no response.

    With the mail server off "netstat -an" does not show 0.0.0.0:25 so no other service is using the port.

    The port is being blocked at a network level.
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  4. #4
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    We do not block ports.
    More likely your ISP is blocking it!
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  5. #5
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    Funny because I've tried to telnet to it from my 2 ISP's and 2 other dedicated servers that are from different providers all with the same results.
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  6. #6
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    Most isp's block port 25 coming from your computer to the internet to prevent your computer from becoming a spambot.
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  7. #7
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    Quote Originally Posted by DominionHosting View Post
    Most isp's block port 25 coming from your computer to the internet to prevent your computer from becoming a spambot.
    I am very aware of that. I have several other email servers running with no problems on other VPS providers and dedicated server providers.

    ONLY the burst.net one is giving me trouble.

    Port 25 from any source to the BURST.NET server is not working.
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  8. #8
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    Quote Originally Posted by bds1904 View Post
    Funny because I've tried to telnet to it from my 2 ISP's and 2 other dedicated servers that are from different providers all with the same results.
    That doesn't mean that BurstNET's reasoning is wrong, and they have no reason to block port 25... Besides, WHT would be full of threads about it. Try port 26.
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  9. #9
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    Quote Originally Posted by F-DNS View Post
    That doesn't mean that BurstNET's reasoning is wrong, and they have no reason to block port 25... Besides, WHT would be full of threads about it. Try port 26.
    I have tried other ports, they all work.

    ONLY PORT 25 IS NOT WORKING CORRECTLY.

    I HAVE STATED THIS IN THE THREAD ALREADY.
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  10. #10
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    Try the telnet test on your VPS to your VPS.
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  11. #11
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    Quote Originally Posted by bds1904 View Post
    I have tried other ports, they all work.

    ONLY PORT 25 IS NOT WORKING CORRECTLY.

    I HAVE STATED THIS IN THE THREAD ALREADY.

    I know you are frustrated but that is no reason to be shouting at us. We are the ones trying to help you.
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  12. #12
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    Quote Originally Posted by bds1904 View Post
    I have tried other ports, they all work.
    I hear you (without the shouting ). So, if Burst aren't blocking the port there's 2 other alternatives. Either your config is wrong or you're being blocked somewhere. A lot of ISPs (still) block 25, so if you can get to SMTP via 26 then it's most likely that. If you can't then it's more likely to be your config. The least likely cause, by a country mile, is that BurstNET are blocking it exclusively on your VPS and no-one else's.
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  13. #13
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    Quote Originally Posted by DominionHosting View Post
    Try the telnet test on your VPS to your VPS.
    telnet from vps on port 25 works, both 127.0.0.1 and the public ip.

    The only thing left is the provider.
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  14. #14
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    Without the ip there is nothing else I can do.
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  15. #15
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    Quote Originally Posted by DominionHosting View Post
    Without the ip there is nothing else I can do.
    184.82.97.34

    best thing is that from one burst vps to another it works on port 25 but off burst.net network it doesn't. That clearly shows that it is being blocked by burst.net or their bandwidth providers.
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  16. #16
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    Quote Originally Posted by bds1904 View Post
    184.82.97.34

    best thing is that from one burst vps to another it works on port 25 but off burst.net network it doesn't. That clearly shows that it is being blocked by burst.net or their bandwidth providers.

    Worked for me

    Trying 184.82.97.34...
    Connected to 184.82.97.34.
    Escape character is '^]'.
    220 mail.fr33tech.com
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  17. #17
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    just lifted, works fine now. guess they were reading. works fine from home and 2 other providers.
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  18. #18
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    Quote Originally Posted by bds1904 View Post
    just lifted, works fine now. guess they were reading. works fine from home and 2 other providers.
    Sorry, but no, we changed nothing---we would have no need to.
    BURSTNET DOES NOT BLOCK PORTS.
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  19. #19
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    Quote Originally Posted by bds1904 View Post
    works fine now.
    Glad you got it figured out.

    </thead>
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