Hi everyone, 

I am using Exchange Server 2013 CU7

In the smtp send connector i can see these many logs, please guide me troublshoot

Failed to connect. Winsock error code: 10060, Win32 error code: 10060, Error Message: 
A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond X.X.X.X:25" X.X.X.X is public ip

• Edited by Risingflight 23 hours 10 minutes ago e

Hello

tip: check firewall for 25 port

Hi,

Would you please post more details about your environment? For example, firewall, external mail flow and accept domain.
How about internal or external mail flow?

Please check the firewall port as Sneff mentioned. Then run below command to check the configuration for send connector, as well as accept domain:
Get-SendConnector | FL
Get-AcceptDomain | FL
Note: pay attention to the IP range  and address space.

Thanks