Add SMTP dispatcher seam and MailKit implementation

2026-06-23 19:08:30 -07:00
parent 85bf329d93
commit 444cc70b56
2 changed files with 52 additions and 0 deletions
@@ -0,0 +1,38 @@
+using MailKit.Net.Smtp;
+using MailKit.Security;
+using Microsoft.Extensions.Options;
+using MimeKit;
+
+namespace ROLAC.API.Services.Notifications;
+
+/// <summary>Sends a single email via MailKit using the configured SMTP server.</summary>
+public sealed class MailKitSmtpDispatcher : ISmtpDispatcher
+{
+    private readonly SmtpOptions _options;
+
+    public MailKitSmtpDispatcher(IOptions<SmtpOptions> options) => _options = options.Value;
+
+    public async Task SendAsync(OutboundEmail email, CancellationToken ct = default)
+    {
+        var message = new MimeMessage();
+        message.From.Add(new MailboxAddress(_options.FromName, _options.FromAddress));
+        message.To.Add(MailboxAddress.Parse(email.ToAddress));
+        message.Subject = email.Subject;
+
+        var builder = new BodyBuilder { HtmlBody = email.HtmlBody };
+        foreach (var attachment in email.Attachments)
+        {
+            builder.Attachments.Add(
+                attachment.FileName, attachment.Content, ContentType.Parse(attachment.ContentType));
+        }
+        message.Body = builder.ToMessageBody();
+
+        using var client = new SmtpClient();
+        var socketOptions = _options.UseSsl ? SecureSocketOptions.StartTls : SecureSocketOptions.Auto;
+        await client.ConnectAsync(_options.Host, _options.Port, socketOptions, ct);
+        if (!string.IsNullOrEmpty(_options.User))
+            await client.AuthenticateAsync(_options.User, _options.Password, ct);
+        await client.SendAsync(message, ct);
+        await client.DisconnectAsync(true, ct);
+    }
+}