Please whitelist cPanel in your adblocker so that you’re able to see our version release promotions, thanks!

The Community Forums

Interact with an entire community of cPanel & WHM users!

No Route To Host / Network is unreachable

Discussion in 'E-mail Discussion' started by Peter Fraser, Sep 1, 2015.

  1. Peter Fraser

    Peter Fraser Member

    Joined:
    Sep 1, 2015
    Messages:
    6
    Likes Received:
    0
    Trophy Points:
    1
    Location:
    Glasgow
    cPanel Access Level:
    Root Administrator
    Hi sorry if this has been answered before just i am rather stuck lol.

    My problem is no mail is being sent or received for any accounts, i keep getting No Route to host and Network is unreachable errors or they just time out, i have disabled my firewall and even done a complete reinstall of Cpanel but still the same it may be something i am doing but its a error i have never had before.
     
  2. 24x7server

    24x7server Well-Known Member

    Joined:
    Apr 17, 2013
    Messages:
    1,888
    Likes Received:
    90
    Trophy Points:
    78
    Location:
    India
    cPanel Access Level:
    Root Administrator
    Hello,

    I will suggest you please discuss this with your data center or upstream provider. It's seems that there are firewall in place outside of your server causing this problem. As you have already disabled firewall on your server but you are still facing same issues.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  3. Peter Fraser

    Peter Fraser Member

    Joined:
    Sep 1, 2015
    Messages:
    6
    Likes Received:
    0
    Trophy Points:
    1
    Location:
    Glasgow
    cPanel Access Level:
    Root Administrator
    Hi thank you for the reply, I will get in touch with my data center and check with them I will post back if this was the problem thanks again.
     
  4. cPanelMichael

    cPanelMichael Technical Support Community Manager
    Staff Member

    Joined:
    Apr 11, 2011
    Messages:
    45,532
    Likes Received:
    1,966
    Trophy Points:
    363
    cPanel Access Level:
    Root Administrator
    Twitter:
    Hello :)

    It's also possible that a remote mail server has blocked your server from sending it email. For instance, do you only notice the issue when sending email to specific providers (e.g. Google)?

    Thank you.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  5. Peter Fraser

    Peter Fraser Member

    Joined:
    Sep 1, 2015
    Messages:
    6
    Likes Received:
    0
    Trophy Points:
    1
    Location:
    Glasgow
    cPanel Access Level:
    Root Administrator
    Hi i contacted my data center they have assured me that a firewall is not blocking any ports.

    I also tried various email providers and still the same problem i am really lost on this problem
     
  6. Infopro

    Infopro cPanel Sr. Product Evangelist
    Staff Member

    Joined:
    May 20, 2003
    Messages:
    16,585
    Likes Received:
    440
    Trophy Points:
    583
    Location:
    Pennsylvania
    cPanel Access Level:
    Root Administrator
    Twitter:
    Do you see any issues with your domain here?
    intodns.com
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  7. Peter Fraser

    Peter Fraser Member

    Joined:
    Sep 1, 2015
    Messages:
    6
    Likes Received:
    0
    Trophy Points:
    1
    Location:
    Glasgow
    cPanel Access Level:
    Root Administrator
    The problems it gave - TLD Parent Check WARNING: Looks like the parent servers do not have information for your TLD when asked. This is ok but can be confusing. / Your SOA EXPIRE number is: 3600000. That is NOT OK / Different autonomous systems WARNING: Single point of failure.
     
  8. Infopro

    Infopro cPanel Sr. Product Evangelist
    Staff Member

    Joined:
    May 20, 2003
    Messages:
    16,585
    Likes Received:
    440
    Trophy Points:
    583
    Location:
    Pennsylvania
    cPanel Access Level:
    Root Administrator
    Twitter:
    Feel free to open a ticket to cPanel Technical Support about this.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  9. cPanelMichael

    cPanelMichael Technical Support Community Manager
    Staff Member

    Joined:
    Apr 11, 2011
    Messages:
    45,532
    Likes Received:
    1,966
    Trophy Points:
    363
    cPanel Access Level:
    Root Administrator
    Twitter:
    Hello :)

    Yes, as mentioned, it's possible that the remote mail server is blocking you as opposed to your own firewall rules blocking the connection. Do you notice any specific error messages in /var/log/exim_mainlog for these messages? EX:

    Code:
    exigrep user@domain /var/log/exim_mainlog
    Thank you.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  10. Peter Fraser

    Peter Fraser Member

    Joined:
    Sep 1, 2015
    Messages:
    6
    Likes Received:
    0
    Trophy Points:
    1
    Location:
    Glasgow
    cPanel Access Level:
    Root Administrator
    Hi Michael , i opened a ticket and was told port 25 is being blocked but i have contacted my provider again they said its definitely not being blocked i have of course disabled my firewall.

    I have also enabled Exim Mail Server (on another port) but the problem still occurs and i checked /var/log/exim_mainlog but i cant see anything that stands out apart from
    R=dkim_lookuphost T=dkim_remote_smtp defer (113): No route to host.
     
  11. cPanelMichael

    cPanelMichael Technical Support Community Manager
    Staff Member

    Joined:
    Apr 11, 2011
    Messages:
    45,532
    Likes Received:
    1,966
    Trophy Points:
    363
    cPanel Access Level:
    Root Administrator
    Twitter:
    Hello :)

    I've reviewed the support ticket and that conclusion looks accurate. Could you contact your hosting provider and have them take an additional look? Show them the output from a command such as "telnet 74.125.141.27 25" as evidence outgoing email is blocked.

    Thank you.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
Loading...

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice