Dear All, Today i found how to configure Gmail smtp with sharepoint 2013 / sharepoint 2010, Thanks for MOSTAFA SELIM Orignial Post: http://sqlserver-performance-tuning.net/?p=1797 Here are the steps : Configuring Outgoing email settings in SharePoint with Gmail SMTP 1. Select SMTP Server in features in Server manager. 2. Go to Start a Administrative Tools a Internet Information Services (IIS) 6.0 Manager to open IIS 6.0 a right click on SMTP Server a Properties 3. In Access Tab go to Relay Restrictions In Relay Restrictions 1) Check “All except the list below” 2) Check “Allow all computers which successfully authenticate to relay…” 4. Goto message tab and fill in as shown below 5. Go to delivery tab on Outbound Connections, fill in 6. In delivery tab in outbound security Select basic authentication and in Username provide a Gmail account already configured for POP3 Create and setup a Gmail account to use P...