OrchardCore.Email Module

OrchardCore.Email supplies the provider-neutral email API. Enable an email provider and configure one enabled provider as the default before application code sends mail.

Provider module	Tenant provider technical name	Configuration-backed default
OrchardCore.Email.Smtp	SMTP	DefaultSMTP
OrchardCore.Email.Azure	Azure	DefaultAzure

The email settings page is Settings → Communication → Email. It lists enabled providers and selects EmailSettings.DefaultProviderName. Enabling the last valid tenant provider selects it automatically; otherwise explicitly choose the default. The test page is Tools → Testing → Email Test and lets an administrator select an enabled provider for the test message.

Enable and Configure SMTP

{
  "steps": [
    {
      "name": "Feature",
      "enable": [
        "OrchardCore.Email",
        "OrchardCore.Email.Smtp"
      ]
    },
    {
      "name": "Settings",
      "SmtpSettings": {
        "IsEnabled": true,
        "DefaultSender": "noreply@example.com",
        "Host": "smtp.example.com",
        "Port": 587,
        "AutoSelectEncryption": false,
        "EncryptionMethod": "STARTTLS",
        "RequireCredentials": true,
        "UserName": "smtp-user",
        "Password": "use-a-secret-provider",
        "DeliveryMethod": "Network"
      },
      "EmailSettings": {
        "DefaultProviderName": "SMTP"
      }
    }
  ]
}

OrchardCore_Email_Smtp configures the DefaultSMTP provider. Use the settings UI for a tenant-specific SMTP provider. Do not commit credentials.

Enable and Configure Azure Communication Services

{
  "steps": [
    {
      "name": "Feature",
      "enable": [
        "OrchardCore.Email",
        "OrchardCore.Email.Azure"
      ]
    },
    {
      "name": "Settings",
      "AzureEmailSettings": {
        "IsEnabled": true,
        "DefaultSender": "DoNotReply@your-domain.azurecomm.net",
        "ConnectionString": "supply-from-a-secure-source"
      },
      "EmailSettings": {
        "DefaultProviderName": "Azure"
      }
    }
  ]
}

OrchardCore_Email_AzureCommunicationServices configures DefaultAzure. Use a verified ACS sender and secure configuration for connection strings.

Sending Email Programmatically

Inject IEmailService; ISmtpService, SmtpResult, and MailKitSmtpService are not the v3 API. Use HtmlBody and/or TextBody; Body and IsHtmlBody are obsolete.

using OrchardCore.Email;
using OrchardCore.Infrastructure;

namespace MyModule;

public sealed class OrderConfirmationService
{
    private readonly IEmailService _emailService;

    public OrderConfirmationService(IEmailService emailService)
    {
        _emailService = emailService;
    }

    public Task<Result> SendAsync(
        string recipientEmail,
        string orderId,
        CancellationToken cancellationToken = default)
    {
        var message = new MailMessage
        {
            To = recipientEmail,
            Subject = $"Order confirmation {orderId}",
            HtmlBody = $"<p>Your order <strong>{orderId}</strong> has been confirmed.</p>",
            TextBody = $"Your order {orderId} has been confirmed.",
        };

        return _emailService.SendAsync(message, cancellationToken: cancellationToken);
    }
}

Pass a provider technical name only when deliberately overriding the configured default:

var result = await _emailService.SendAsync(
    message,
    providerName: "SMTP",
    cancellationToken: cancellationToken);

if (!result.Succeeded)
{
    foreach (var error in result.Errors)
    {
        logger.LogError("Email send failed: {Error}", error.Message.Value);
    }
}

MailMessage supports From, To, Cc, Bcc, ReplyTo, Sender, Subject, HtmlBody, TextBody, and Attachments.

IEmailService.SendAsync() and IEmailProvider.SendAsync() accept a CancellationToken. Pass the request token through custom providers and event handlers so shutdown and request cancellation can stop delivery.

Liquid Templates

Render a Liquid template before assigning it to HtmlBody:

var html = await _liquidTemplateManager.RenderStringAsync(
    "<p>Welcome, {{ UserName }}!</p>",
    System.Text.Encodings.Web.HtmlEncoder.Default,
    new { UserName = userName });

await _emailService.SendAsync(new MailMessage
{
    To = recipientEmail,
    Subject = "Welcome",
    HtmlBody = html,
    TextBody = $"Welcome, {userName}!",
});

Email Events

Implement IEmailServiceEvents, or derive from EmailServiceEventsBase, to observe validation and delivery. Event methods receive a cancellation token; ValidatedAsync and ValidatingAsync also receive MailMessageValidationContext.

using OrchardCore.Email;
using OrchardCore.Email.Services;

namespace MyModule;

public sealed class EmailAuditHandler : EmailServiceEventsBase
{
    private readonly ILogger<EmailAuditHandler> _logger;

    public EmailAuditHandler(ILogger<EmailAuditHandler> logger)
    {
        _logger = logger;
    }

    public override Task SendingAsync(MailMessage message, CancellationToken cancellationToken = default)
    {
        _logger.LogInformation("Sending email with subject {Subject}.", message.Subject);
        return Task.CompletedTask;
    }

    public override Task FailedAsync(MailMessage message, CancellationToken cancellationToken = default)
    {
        _logger.LogWarning("Email delivery failed for subject {Subject}.", message.Subject);
        return Task.CompletedTask;
    }
}

Register the handler as IEmailServiceEvents.

services.AddScoped<IEmailServiceEvents, EmailAuditHandler>();

Workflows

With OrchardCore.Email and OrchardCore.Workflows enabled, use the Send Email workflow activity. Its body is rendered as HTML, so provide HTML there and keep provider configuration outside the workflow definition.