IMAP, POP3 and SMTP configuration for GMail

You can use a Gmail account to receive, read, modify, and send email messages using the Ultimate Mail component. Gmail only accepts secure connections with the configuration shown in the table below:

The following example code shows how to connect to Gmail IMAP, POP3, and SMTP servers:

C#

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

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

// Create a new instance of the Smtp class and send an email.
using (Smtp client = new Smtp())
{
    // Connect to the server.
    client.Connect("smtp.gmail.com", 465, SecurityMode.Implicit);
    // Login to the server.
    client.Authenticate("test@domain.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);
}

VB.NET

' Create a new instance of the Imap class and download a message.
Using client As New Imap()
    ' Connect to the server.
    client.Connect("imap.gmail.com", 993, SecurityMode.Implicit)
    ' Login to the server.
    client.Authenticate("test@domain.com", "password")

    ' Download a message to an instance of the MailMessage class.
    Dim msg As MailMessage = client.DownloadMailMessage(imapMessageUniqueId)
End Using

' Create a new instance of the Pop3 class and download a message.
Using client As New Pop3()
    ' Connect to the server.
    client.Connect("pop.gmail.com", 995, SecurityMode.Implicit)
    ' Login to the server.
    client.Authenticate("test@domain.com", "password")

    ' Download the message to an instance of the MailMessage class.
    Dim msg As MailMessage = client.DownloadMailMessage(pop3MessageSequenceNumber)
End Using

' Create a new instance of the Smtp class and send an email.
Using client As New Smtp()
    ' Connect to the server.
    client.Connect("smtp.gmail.com", 465, SecurityMode.Implicit)
    ' Login to the server.
    client.Authenticate("test@domain.com", "password")

    ' Create a new mail message.
    Dim msg As 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)
End Using