we are setting up TFS 2013 for our company we have a problem in email alerts and configuration
after configuring the smtp settings and when we try to send a test mail we get the below error.
TFS Email Error:

we are setting up TFS 2013 for our company we have a problem in email alerts and configuration
after configuring the smtp settings and when we try to send a test mail we get the below error.
TFS Email Error:

First, make sure your connection of TFS are all normal.
As DaveShaw mentioned, please double check the configure of SMTP server. More details of configuration from MSDN: https://msdn.microsoft.com/library/ms400808.aspx
Note: the format of SMTP server should be IP address: xxx.xxx.xxx.xxx
You need to make sure you are sending emails from a windows account e.g [email protected] or [email protected]. This solved our email issue in TFS on prem