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asp.net core 3.0 でメールを送ってみる

Last updated at Posted at 2019-10-14

#MailKit
SmtpClient Classは使えなくなっている

MailKit(https://github.com/jstedfast/MailKit)を使えばいいらしいんだが、検索してみると
ここがヒット
https://showylee.qrunch.io/entries/7fMcZM53WUZFTTvd
ここのサンプルコードでほぼほぼ動作する
あ、私がコピペした段階では多少問題ありでしたが
少し手を入れました

'''

public interface IMailSendLogic
{
    void SendMailAsync(string to, string from, string subject, string text);
}

public class MailSendLogic : IMailSendLogic
{
    private string SmtpHost = "";
    private int SmtpPort = 587;
    private string User = "";
    private string Pass = "";
    public async void SendMailAsync(string to, string from, string subject, string text)
    {
        var message = new MimeKit.MimeMessage();
        // 送り元情報  
        message.From.Add(new MimeKit.MailboxAddress("<送信者名>", from));
        // 宛先情報  
        message.To.Add(new MimeKit.MailboxAddress("<宛名>", to));
        // 表題  
        message.Subject = subject;
        // 内容  
        var textPart = new MimeKit.TextPart(MimeKit.Text.TextFormat.Plain);
        textPart.Text = text;
        message.Body = textPart;

        using (var client = new MailKit.Net.Smtp.SmtpClient())
        {
            try
            {
                // SMTPサーバに接続  
                await client.ConnectAsync(SmtpHost, SmtpPort);
                Debug.WriteLine("接続完了");

                // SMTPサーバ認証(あれば)  
                await client.AuthenticateAsync(User, Pass);

                // 送信  
                await client.SendAsync(message);

                // 切断  
                await client.DisconnectAsync(true);

            }
            catch (Exception e)
            {
                Debug.WriteLine("{0} Exception caught.", e);
            }
        }
    }
}

'''

nugetから取得します

image.png

core 3.0で確認しました。

Githubにも上げました

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