This module helps build SendGrid's SMTP API headers.
All updates to this module is documented in our CHANGELOG.
- .NET version 4.5.2
- The SendGrid service, starting at the free level)
Update your Environment (user space) with your SENDGRID_USERNAME and SENDGRID_PASSWORD.
To use SendGrid.SmtpApi in your C# project, you can either download the SendGrid C# .NET libraries directly from our Github repository or, if you have the NuGet package manager installed, you can grab them automatically.
PM> Install-Package SendGrid.SmtpApiAdd the following namespace to use the library:
using SendGrid.CSharp.HTTP.Client;Once you have the library properly referenced in your project, you can include calls to them in your code.
For a sample implementation, check the Example
using SendGrid.CSharp.HTTP.Client;
client.Host = "smtp.sendgrid.net";
client.Timeout = 10000;
client.DeliveryMethod = SmtpDeliveryMethod.Network;
client.UseDefaultCredentials = false;
String sendgrid_username = Environment.GetEnvironmentVariable("SENDGRID_USERNAME", EnvironmentVariableTarget.User);
String sendgrid_password = Environment.GetEnvironmentVariable("SENDGRID_PASSWORD", EnvironmentVariableTarget.User);
client.Credentials = new System.Net.NetworkCredential(sendgrid_username,sendgrid_password);
MailMessage mail = new MailMessage();
mail.To.Add(new MailAddress("test@example.com"));
mail.From = "test@example.com";
mail.Subject = "this is a test email.";
mail.Body = "this is my test email body";
// add the custom header that we built above
mail.Headers.Add( "X-SMTPAPI", xmstpapiJson );
client.SendAsync(mail, null);If you want to add multiple recipients to the X-SMTPAPI header for a mail merge type send, you can do something like the following:
var header = new Header();
var recipients = new List<String> {"test1@example.com", "test2@example.com", "test3@example.com"};
header.SetTo(recipients);
var subs = new List<String> {"A","B","C"};
header.AddSubstitution("%name%", subs);
var mail = new MailMessage
{
From = new MailAddress("test@example.com"),
Subject = "Welcome",
Body = "Hi there %name%"
};
// add the custom header that we built above
mail.Headers.Add("X-SMTPAPI", header.JsonString());If you are intersted in the future direction of this project, please take a look at our milestones. We would love to hear your feedback.
We encourage contribution to our projects, please see our CONTRIBUTING guide for details.
Quick links:
smtpapi-csharp is guided and supported by the SendGrid Developer Experience Team.
smtpapi-csharp is maintained and funded by SendGrid, Inc. The names and logos for smtpapi-csharp are trademarks of SendGrid, Inc.
![SendGrid Logo] (https://uiux.s3.amazonaws.com/2016-logos/email-logo%402x.png)