IMAP, POP3 and SMTP settings for Yahoo! Mail

You can connect to Yahoo! IMAP, POP3 and SMTP servers without SSL enabled. The following table shows the available settings to establish connections to Yahoo! Mail servers:

You can also use the Ultimate Mail to connect to Outlook 365, Outlook.com and Live.com.

The following code snippets show to connect to the Yahoo! Mail Servers using the Imap, Pop3, and Smtp classes:

IMAP

// Create a new instance of the Imap class and download a message.
using (Imap client = new Imap())
{
	// Connect to the server.
	client.Connect("imap.mail.yahoo.com", 993, SecurityMode.Implicit);
	// Login to the server.
	client.Authenticate("mytest@yahoo.com", "password");
	 
	// Download a message to an instance of the MailMessage class.
	MailMessage msg = client.DownloadMailMessage(imapMessageUniqueId);
}

POP3

// Create a new instance of the Pop3 class and download a message.
using (Pop3 client = new Pop3())
{
	// Connect to the server.
	client.Connect("pop.mail.yahoo.com", 995, SecurityMode.Implicit);
	// Login to the server.
	client.Authenticate("mytest@yahoo.com", "password");
	 
	// Download the message to an instance of the MailMessage class.
	MailMessage msg = client.DownloadMailMessage(pop3MessageSequenceNumber);
}

SMTP

// Create a new instance of the Smtp class and send an email.
using (Smtp client = new Smtp())
{
	// Connect to the server.
	client.Connect("smtp.mail.yahoo.com", 587);
	// Login to the server.
	client.Authenticate("mytest@yahoo.com", "password");
	 
	// Create a new mail message.
	MailMessage msg = new MailMessage();
	msg.Subject = "Test Subject";
	msg.BodyText = "Content";
	msg.From = "from@mydomain.com";
	msg.To = "to@somedomain.com";
	// And send it.
	client.Send(msg);
}

In case you want to connect to the Gmail server, you can now use the OAuth method instead of just using a pair of username and password.