Emails not sending

[Shraned]

Hello,

The emails are not sending .
Tried multiple code but still not sending .
Here part of my code :

public class Email_Logger : IEmail_Interface
{
    public Serilog.Core.Logger _email_Logger ;
    
    public Email_Logger()
    {
        _email_Logger = new LoggerConfiguration()
    .WriteTo.Email(new EmailConnectionInfo()
    {
        EmailSubject = "Subject Of Email",
        EnableSsl = false,
        FromEmail = "noreply@mondomain",
        MailServer = "FQDN of Internal SMTP SERVER",
        Port = 25,
        ToEmail = @"recipient@domain",
        NetworkCredentials=null,
        IsBodyHtml = true
    }
)
.CreateLogger();
}

Is there something wrong ?

[Michelh91]

What version of MailKit are you using? If you have Mailkit >2.6.0 it won't work.

Try donwgrading it to 2.6.0

Dont know why it has not been changed to make it work with newer versions of mailkit

[Shraned]

Hello

I'm not using MailKit...
Do u have a sample/tuto working ?
Regards

[Michelh91]

EmailConnectionInfo notificationEmailInfo = new EmailConnectionInfo
{
    FromEmail = "youremail@somecompany.com",
    MailServer = "smtp.office365.com",
    EmailSubject = "Subject of the email",
    EnableSsl = false,
    Port = 587,
    ToEmail = emails,
    NetworkCredentials = new NetworkCredential()
    {
        UserName = "youremail@somecompany.com",
        Password = "yourpassword"
    }
};


logConfig.WriteTo.Email(
        notificationEmailInfo,
        restrictedToMinimumLevel: LogEventLevel.Information,
        period: TimeSpan.FromMinutes(60)
    );

This is what I am using, but I'm sending emails with office365 smtp, so a different use case than your's, as you seem to be trying to send emails from a relay server without authentication.

Be sure to call Log.CloseAndFlush() before program or thread ends, otherwise email sending will not execute.

[Michelh91]

Also, you might want to try enabling Serilog self debug to check if any error is raised internally:

Serilog.Debugging.SelfLog.Enable(Console.Out);

[Shraned]

I'm trying to use serilog with dependency injection, so i have an interface and a service implementing the interface.
Here is rhe code for these 2 :

public interface IEmail_Interface { void Error(Exception? exception, string message, int propertyValue); }

`public class Email_Logger : IEmail_Interface
{
public Serilog.Core.Logger _email_Logger;

public Email_Logger()
{
    _email_Logger = new LoggerConfiguration()
                    .WriteTo.Email(new EmailConnectionInfo()
                    {
                        EmailSubject = "Mail Subject",
                        EnableSsl = false,
                        FromEmail = "mail@domain",
                        MailServer = "smtp.office365.com",
                        Port = 587,
                        ToEmail = @"mail@domain",
                        NetworkCredentials = new NetworkCredential() {
                        UserName="user@domain",
                        Password= "password"

                        },
                        IsBodyHtml = true
                    }
                        , restrictedToMinimumLevel: LogEventLevel.Information
                        , period: TimeSpan.FromMinutes(60))

.CreateLogger();
}
void IEmail_Interface.Error(Exception? exception, string message, int propertyValue)
{
_email_Logger.Error(exception, message, propertyValue);
}

}`

Then in the Service program i call :

_email_interface.Error(ex, "le message",50);

but nothing is send and there is no error in the console

[Michelh91]

Office365 does't allow to send emails with the account password by default.

You have to have two factor enabled and then go to :

https://aka.ms/CreateAppPassword

And create an app password to send emails with that password.

If it's not working yet, try to call _email_interface.email_logger.CloseAndFlush(); after calling the logger.Error method to check if that triggers the email sending.

[Shraned]

ok for O365 but with my relay server it should work without credentials on port 25...
I Can't find the _email_interface.email_logger.CloseAndFlush().

[Shraned]

hello it definitively doesn't work with .net7 and asp application...
too bad.

[mohammadeunus]

Hi shraned, try changing the new logconfiguration to new Serilog.LoggerConfiguration()

[nblumhardt]

Hi! I've updated the version of MailKit we're using, and generally freshened up the package in the 3.0.0-dev-* packages now on NuGet.

I have done very minimal testing, so the new dev packages may be broken in obvious ways, however there's a pretty good chance anything that was version-related will now be resolved.

Any help testing the new packages out would be appreciated; I'll close this as stale but please feel free to open a new issue with example configuration/source code if you still need help. Cheers!