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Blockage of port 25 RRS feed

  • Question

  • Hello!

    Due to the default blockage of port 25 i am unable to sent email to any organization and even in hybrid environment of its 

    own tenant. 

    Thursday, February 8, 2018 1:20 PM

All replies

  • Hello!

    Due to the default blockage of port 25 i am unable to sent email to any organization and even in hybrid environment of its 

    own tenant. 


    Sounds like you need to fix that.
    Thursday, February 8, 2018 2:02 PM
  • Hello,

    Thanks for contacting our forum.

    The issue could be the port 25 is not accessible from internal. Any error message when you sending messages? To view the usage of Port 25, open CMD with administrator in Exchange server and run below cmdlet:

    netstat -aon|findstr "25"

    We can turn down the unrelated services. The restart all the transport services and check the results.

    Make sure this port 25 on Exchange server and on the firewall wasn’t been blocked.

    If the issue is on your ISP, please contact then and fix this.

    Hope it helps.


    Best Regards,
    Jason Chao


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.


    Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.
    • Edited by Jason.Chao Friday, February 9, 2018 2:50 AM
    • Proposed as answer by Allen_WangJF Thursday, February 15, 2018 1:48 PM
    Friday, February 9, 2018 2:50 AM
  • Hi,
     
    We are currently standing by for further update from you and would like to know how things are going. If you have any questions or concerns, please don't hesitate to let me know. And if the replies has helped you, please help to mark as answer since it could be helpful for others.
     
    Thanks for your time.

    Best Regards,
    Jason Chao


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.


    Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

    • Proposed as answer by Jason.Chao Wednesday, March 7, 2018 2:18 AM
    Tuesday, March 6, 2018 9:57 AM
  • Any updates? or if you've resolved this issue, could you please share out and mark as answer, since it will be helpful for others.

    Thanks for your kindly understanding!


    Best Regards,
    Jason Chao


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.


    Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

    Thursday, March 15, 2018 10:06 AM