I'm a student working on a project with an N-tier structure (a web server application with ASP.NET).
I currently have three layers:
* Business logic
* Data access (communication with database)
I want to implement e-mail logic (in order to send e-mail to users) but I'm not sure in which layer it would be appropriate.
Any suggestions from you experienced developers out there? Thank you!
Business Logic layer should be used. You should try and keep your presentation layer as much logic free as possible.