C# email sending using Gmail SMTP fails with SmtpErrorException. Below is a code example with revised names demonstrating the approach.
var newEmail = new EmailMessage(senderField.Text, receiverField.Text, titleField.Text, contentField.Text);
var smtpHandler = new SmtpConnector("smtp.gmail.com", 587);
smtpHandler.SetAuth(new NetworkCredential("[email protected]", "securePwd"));
smtpHandler.EnableEncryption(true);
smtpHandler.Execute(newEmail);
Console.WriteLine("Email dispatched successfully");
I encountered similar problems using Gmail SMTP in a project recently. The complication in my case arose from Gmail tightening its security policies, requiring an app-specific password for external applications. Adjusting the account settings to allow access while ensuring that the correct security protocols were active made a significant difference. Additionally, verifying that all network-related configurations were appropriately set played a crucial role in resolving the issues. It was essential to keep track of changes in Gmail’s policy to adapt the application’s settings accordingly.
I have been working on similar projects and encountered issues with Gmail SMTP before. In my case, the main hurdle was ensuring that my application settings in the Google account allowed less secure apps or setting up an app password if two-factor authentication was enabled. I learned that sometimes even when the credentials are correct, network issues or firewall restrictions may stop the email dispatch process. Adjusting these settings and confirming that your network configuration permits secure SMTP connections helped me overcome the problems. These adjustments turned out to be vital for a smooth implementation.