Email Packages

Body

MimeKit

    using MimeKit;
    
    MimeMessage message = new MimeMessage();
    message.From.Add(new MailboxAddress("brandon paxton", "14paxton@gmail.com"));
    message.To.Add(new MailboxAddress("cunt bigalow", "14paxton@gmail.com"));
    message.Subject = "How you doin'?";
    
    message.Body = new TextPart("plain")
    {
    Text = @"Hey Chandler,
    
    I just wanted to let you know that Monica and I were going to go play some paintball, you in?
    
    -- Joey"
    };

BodyBuilder

adding attachments too

    var builder = new BodyBuilder
    {
        // Set the plain-text version of the message text
        TextBody = @"Hey Alice,
    
    What are you up to this weekend? Monica is throwing one of her parties on
    Saturday. I was hoping you could make it.
    
    Will you be my +1?
    
    -- Joey
    "
    };
    
    string currentDir = Directory.GetCurrentDirectory();
    // string path = Path.Combine(new FileInfo(Assembly.GetExecutingAssembly().Location).DirectoryName,"vcu-chat-bot");
    
    Console.WriteLine(currentDir);
    builder.Attachments.Add ($@"{currentDir}/../Files.zip");
    
    // Now we just need to set the message body and we're done
    message.Body = builder.ToMessageBody ();

SMTP sending

System.Net.Mail.SmtpClient

     string body = "<head>" +
                   "Here comes some logo" +
                   "</head>" +
                   "<body>" +
                   "<h1>Account confirmation reqest.</h1>" + Environment.NewLine +
                   "<a>Dear User, </a>" + Environment.NewLine +
                   "<a>In order to be able to use musicshop app properly, we require You to confirm Your email address.</a>" + Environment.NewLine +
                   "<a>This is the last step towards using our app.</a>" + Environment.NewLine +
                   "<a>Pleas follow this hyperlink to confirm your address.</a>" + Environment.NewLine +
                   "<a>[Callback url]</a>" +
                   "</body>";
     try
     {
         using (var smtpClient = new System.Net.Mail.SmtpClient("smtp-relay.brevo.com", 587))
         {
             smtpClient.UseDefaultCredentials = false;
             smtpClient.Credentials = new System.Net.NetworkCredential()
             {
                 UserName = "email",
                 Password = "password",
             };
             smtpClient.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
             smtpClient.EnableSsl = true;
    
             smtpClient.Send("14paxton@gmail.com", "14paxton@gmail.com", "Account verification", body);
         }
     }
     catch (Exception e)
     {
         Console.Error.WriteLine("{0}: {1}", e.ToString(), e.Message);
     }

MailMessage Class

    using (var client = new System.Net.Mail.SmtpClient())
    {
    
        client.Host = "smtp.office365.com";
        client.Port = 587;
    
        // client.Host = "smtp.elasticemail.com";
        // client.Port = 2525;#1#
    
        // client.Host = "smtp.gmail.com";
        // client.Port = 587;
    
        client.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
        client.UseDefaultCredentials = false;
        client.EnableSsl = true;
    
        client.Credentials = new System.Net.NetworkCredential("email", "password");
    
    
        var bpaxton = new System.Net.Mail.MailAddress("14paxton@gmail.com", "Bpaxton");
        var megs = new System.Net.Mail.MailAddress("megs@gmail.com", "Megan");
        using (var message = new System.Net.Mail.MailMessage(
                   from: megs,
                   to: bpaxton
               ))
        {
    
            message.Subject = "Hello from code!";
            message.Body = "Loremn ipsum dolor sit amet ...";
    
            client.Send(message);
        }
    }

MailKit.Net.Smtp.SmtpClient
MailKit Github

    using MailKit.Net.Smtp.SmtpClient client = new MailKit.Net.Smtp.SmtpClient();
    
    client.Connect("smtp.add.org", 587, false);
    // client.Connect("smtp.office365.com", 587, false);
    // client.Connect("smtp.gmail.com", 587, false);
    // client.Connect("smtp-relay.brevo.com", 587, false);
    
    // Note: only needed if the SMTP server requires authentication
    
    client.Authenticate("admin", "pw");
    
    client.Send(message);
    client.Disconnect(true);

MailKitSimplified

        using (var smtpSender = MailKitSimplified.Sender.Services.SmtpSender.Create("smtp.gmail.com").SetCredential("email", "password"))
        {
        smtpSender.WriteEmail
        .From("my.name@example.com")
        .To("14paxton@gmail.com")
        .Subject("Hello World")
        .BodyHtml("<p>Hi</p>")
        .Send();
        
        smtpSender.Dispose();
        }
        
        Console.WriteLine("resp");

use GMail as SMTP Server

GMail accounts can actually be used as an SMTP server, in a manner of speaking.
That’s exactly what we need – a way of sending an email to the mobile phone carrier, so they can in turn send a text
message to the mobile phone.
We send the email to GMail, GMail passes it on to the mobile phone carrier, which turns it into a text message and sends it to our cell phone.
Yes, it does involve a few
steps, but you can’t argue against the price (free!).

The SMTP server functionality isn’t exactly available for anyone to get access to – you have to have a GMail account (which is free).
Because of this, we will need to do a few special things.
More on
that later though.
Let’s see how it’s done.

Here’s a code snippet on how to do it. First of all, in our Windows App, we need to include the following “using” statements:

using System.Net;
using System.Net.Mail;

Somewhere in the body of the program, we need to create a new MailMessage, give it some details, like so:

MailMessage message = new MailMessage();
message.To.Add("1234567890@txt.bell.ca");
message.From = new MailAddress("yourgmailaccount@gmail.com", "App"); //See the note afterwards...
message.Body = "This is your cell phone. How was your day?";

At this point, the email address that the message comes from really doesn’t matter – it won’t show up as GMail will override it when it gets passed
on to the mobile phone carrier.
The important one to get right is the email address that it is going to be sent to.
This depends on your phone number and your mobile carrier.
In this case, the phone number is (123)456-7890 and the carrier is Bell.
Check out the previously mentioned wikipedia link to see what your carrier-specific email address is.
If you don’t get this right, the message will most certainly not get through.

Next, we need to create an SMTP client, and set it up:

SmtpClient smtp = new SmtpClient("smtp.gmail.com");
smtp.EnableSsl = true;
smtp.Port = 587;
smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
smtp.Credentials = new NetworkCredential("yourgmailaddress@gmail.com", "yourgmailpassword");

Here we create a new SMTP Client that will connect to the GMail SMTP server.
Because we are connecting to a GMail secured server we need to enable SSL, as well as use a particular port – port 587.
(There is apparently another port that can be used, but I haven’t heard of anyone getting it to work – port 465).
Next, you need to put your own GMail email address where “yourgmailaddress.gmail.com”
is, as well as replace “yourgmailpassword” with your actual GMail password.

After this, there isn’t much you need to do – send the email, like so:

try
{
    smtp.Send(message);
}
catch (Exception ex)
{
    MessageBox.Show(ex.Message);
}

Resources

Free SMTP Servers

Provider	SMTP Server	SMTP Port	SMTP Host Name	Use TLS	Use Start TLS
Plasec Brinkster	mymail.brinkster.com	2525	leave blank/empty	no	no
Yahoo Mail	smtp.mail.yahoo.com	587	leave blank/empty	no	no
Hotmail	smtp.live.com	587	leave blank/empty	yes	yes
Google Gmail	smtp.gmail.com [or smtp-relay.gmail.com if enabled within client's Gmail account]	587	leave blank/empty	no	yes
Microsoft Office 365	smtp.office365.com	587	leave blank/empty	no	yes

Paid SMTP Servers

Free SMTP Servers	Starting price	Free email Daily limit	Free Email /Month	Used for
Brevo	$25/month for 20K emails	300	9000	SMTP, email marketing, SMS, and marketing automation
Elastic Emails	No daily limit	100	3000	Email campaigns
Sendpulse	$6.40 for Unlimited emails	400	15000	Email marketing, WhatsApp campaigns, and SMS
Amazon SES	$0.10 per 1000 emails	NA	62000	Email marketing, notifications, and transactional emails
Mailgun	$35/month for 50K emails	200	50000 for the First 30 days	Transactional emails
Google SMTP	$6/month for 2000 emails/day	500mails/day for 14 days	Valid for 14 days	For low email volumes
Sendgrid	$19.95/month for 50K emails	100	3000	Promotional emails, Newsletters, Password reset emails
Moosend	$9/month for Unlimited emails	Unlimited	Unlimited for the First 30 days	Email marketing
SMTP2GO	$10/month for 10K emails	200	1000	Transactional and Marketing emails
MailerSend	$24/month for 50K emails	NA	3000	Transactional emails, Email marekting ,SMTP
Mailtrap	$10/month for 10k emails	NA	1000	SMTP, Email marketing, QA automation
Postmark	$15/month for 10,000 emails	NA	100 emails per month	Free SMTP relay and transactional emails
Sarbacane	129€/month* for unlimited emails	No daily limitF	NA	SMS marketing, SMTP, email marketing, Transactional emails