AutomaticMailSenderPOC

This is a simple ASP .NET Core Web API to send E-mails using MailKit and Mailtrap free service.
The motivation for this project is to send e-emails in batches to have success contact with my college course coordinator, as he never responds.

Tech Stack

     

How to build and execute it? 🛠️

First of all, make sure you have .NET 8 SDK installed and a Mailtrap account

• Clone the repository
• Inside of the sln directory, restore the dependencies with dotnet restore
• Change the directory to AutomaticMailSenderPOC with cd AutomaticMailSenderPOC and execute the project with dotnet run
• After that, you either have to init and create an user-secret or manually populate the appsettings.json file to bind some data.

First approach: populating appsettings.json

1. Include the following code in the configuration file:

"SmtpSettings": {
   "Server": "sandbox.smtp.mailtrap.io",
   "Port": 2525,
   "SenderEmail": "[email protected]",
   "Username": "Your Username",
   "Password": "Your safe password",
   "MailTrapUserName": "Your Mailtrap Username",
   "MailTrapPassword": "Your Mailtrap Password"
}

Second approach: using dotnet user secrets

1. Inside the csproj directory, initialize the user secrets with: dotnet user-secrets init
2. Then, one by one, type the following in the terminal:

dotnet user-secrets set "SmtpSettings:Server" "sandbox.smtp.mailtrap.io"
dotnet user-secrets set "SmtpSettings:Port" "2525"
dotnet user-secrets set "SmtpSettings:SenderEmail" "[email protected]"
dotnet user-secrets set "SmtpSettings:Username" "Your Username"
dotnet user-secrets set "SmtpSettings:Password" "Your safe password"
dotnet user-secrets set "SmtpSettings:MailTrapUserName" "Your MailTrap Username"
dotnet user-secrets set "SmtpSettings:MailTrapPassword" "Your MailTrap Password"

References 📚

ASP.NET Core - Enviando emails com Mailkit em uma API
MailKit Documentation
MailKit GitHub Project