MailKit it's worked on local pc only, but don't work on live server (2016) on azure.

Created on 20 Mar 2017 · 9Comments · Source: jstedfast/MailKit

MailKit it's worked on local pc only, but don't work on live server (2016) on azure.
When i tested on windows 10 email send is correct, but when we try to deploy to production server
on Azure we can't send email.

I don't make sure IIS on the server block the email service ?
We tried to enable SMTP on server but it's not help.

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Best,
Uthen

question

Source

uthens

Most helpful comment

You need to allow access to the Gsuit Gmail account, because, google blocks the mail from different IP's.

https://accounts.google.com/DisplayUnlockCaptcha

rahulraut5067 on 3 Mar 2020

❤1 👍1

All 9 comments

Sample code we used:

public class EMailSender
{
public async Task SendEmailByThread(string sSubject, string sHtmlBody,
string sFromEmail, string sToEmail, string sFromName, string sToName,
string sAuthenPassword, int nPort, string sSMTP)
{
var message = new MimeMessage();
message.From.Add(new MailboxAddress(sFromName, sFromEmail));
message.To.Add(new MailboxAddress(sToName, sToEmail));
message.Subject = sSubject;

        var bodyBuilder = new BodyBuilder();
        bodyBuilder.HtmlBody = sHtmlBody;
        message.Body = bodyBuilder.ToMessageBody();

        using (var client = new SmtpClient())
        {
            await client.ConnectAsync(sSMTP, nPort, false);

            // Note: since we don't have an OAuth2 token, disable
            // the XOAUTH2 authentication mechanism.
            client.AuthenticationMechanisms.Remove("XOAUTH2");
            await client.AuthenticateAsync(sFromEmail, sAuthenPassword);

            client.Send(message);
            client.Disconnect(true);
        }
    }
}

uthens on 20 Mar 2017

relate on this number or not ? https://github.com/jstedfast/MailKit/issues/393

uthens on 20 Mar 2017

I try on this but don't help.: http://stackoverflow.com/questions/35651001/gmail-smtpauthenticationerror-when-i-attempt-to-send-email-via-django

uthens on 20 Mar 2017

GMail blocks logins from unknown IP addresses. You need to login to your GMail account from your azure server first. Then it will work.