I am not able to send mails to from google VM with port 25,587,2525.

[pradeep mishra]

Dear Support,

I have create 3 vm on google cloud.

1. VM 1- DC  (Active directory 2012 r2)

2. VM-2  Exchange 2010 with hub cas and mailbox server.

3. VM-3 Exchange 2010 Edge server  (For outbound traffic using dns) 

All the function and feature of exchange 2010 is working fine but now the issue is, Exchange 2010 edge server is not able to send the emails to external domain using dns. Now requesting please help to resolve the issue.    

• i have already create allow firewall rule but I am unable to telnet port 23, 25,53,587.2525.  
  
• I have open multiple ticket but not get any call from support team.

[Navi Aujla (Google Cloud Support)]

Hello Pradeep,

I understand that you are not able to send the emails to the external domain using DNS. I would like to point out that outbound connections on ports 25, 465, and 587 are not allowed on Google Compute Engine Platform [1]. If using port 2525, please make sure that firewall rule is in place on GCP (Google Cloud Platform) to allow the connection and instance are configured correctly. Also, I was able to find this thread [2] which may help you to configure the port to 2525.  

However, this seems like a question that would be better posted to serverfault.com with the right tags, rather than a google discussion post. This isn't the right place to look for 1-on-1 support, being the forum meant for the general discussion of the platform.

I wish you luck in finding the answer to your question on serverfault.com.

[1] https://cloud.google.com/compute/docs/tutorials/sending-mail/

[2] https://social.technet.microsoft.com/Forums/lync/en-US/fa3b47e8-daa0-46b0-a78a-d646b3d5b7fa/exchange-server-2010-edge-port-change?forum=exchange2010

[pradeep mishra]

Hi,

Thanks for your reply.

I am facing this issue only google vm. I have make a some mistake to allow firewall port .

[Navi Aujla (Google Cloud Support)]

Hi Pradeep,

As mentioned in my earlier message, this seems like a problem that would be better posted to serverfault.com where you can get assistance from a big technical community on troubleshooting this issue.

This forum is meant for the general discussion of the platform.

Navi