You can create a smtp mail server in SAP and you can send e-mail in SAP System. Step by step mail server configuration in SAP 1- Create Default Domain Tcode > SCOT 2- Create SMTP Node
Tag: SAP Basis
Useful SAP Basis System Administration Transactions
Administration AL11 Display SAP Directories BD54 Maintain Logical Systems OSS1 Logon to Online Service System SALE IMG Application Link Enabling SARA Archive Management SCC3 Copy Analysis Log SCC4 Client Administration SCC5 Client Delete SCC7 Client Import Post-Processing SCC8 Client Export SCC9 Remote client copy SCCL Local Client Copy SCU0 Customizing Cross-System Viewer SICK Installation Check…
SAP Basis Introduction Documents
You can find SAP Basis introduction documents on here
SAP Basis Fundamentals
SAP R/3 is 3 tier architecture. You can see below picture. SAP Basis architecture presentation is here