Configuration of Outgoing and
Incoming E-Mail settings for SharePoint.
I found a very good articles from
MS that explaining the configuration of outgoing and Incoming E-mail settings
in SharePoint.
Outgoing E-mail
configuration:
Incoming E-mail
Configuration:
https://technet.microsoft.com/en-us/library/cc262947.aspx?f=255&MSPPError=-2147217396
I hope the above information will help you to resolve the issue, in case of any queries/questions regarding the above mentioned information then please let me know. I would be more than happy to help you as well as resolves your issues, Thank you.