Hi,
I have installed Exchange 2013 in windows server 2012 R2. Now I am able to send mail by using web app.
But using the same configuration in the outlook and windows mail for SMTP and POP3, I am now able to receive the messages from the external domain, but not able to send the mail.
For example:
My by using xxx@domain.com in outlook application I am able to receive the message from gmail or yahoo. But not able to send mail to this accounts. But I am able to send mail to another mail id yyy@domain.com.
While I am tring to send mail to external email domain I am getting the following message:
Your message did not reach some or all of the intended recipients.
Subject: <subject>
Sent: <date and time>
The following recipient(s) cannot be reached:
'xxx@gmail.com' on 2/13/2015 3:44 PM
Server error: '550 5.7.1 Unable to relay'
Can anyone please help me to fix this issue.