Send .NET App Email via Gmail

Error: The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.0 Must issue a STARTTLS command first. Fix: Step (1): smtp.EnableSsl = true; if not enough: Step (2): “Access for less secure apps” must be enabled for the Gmail account used by the NetworkCredential using google’s settings page:

Setup Mail for SQL Server to use Gmail

SQL Server Mail Account Setup Server name: Port number: 587 This server requires a secure connection (SSL): Checked Basic Authentication: enter your username and password Google Email Make sure “Allow less secure apps” is set to ON Note: for Google Admin users go to Gmail -> Security -> Less Secure Apps Error: You will... » read more

Allowing Additional Host/App to Send Email on G Mail Server

By default, Google mail server will deny sending email from their servers. To enable additional host/application to send email you must add additional host/application records to the routing email section. If you try to send an email from your application without setting this up, you will get the following error message: “5.7.1 Invalid credentials for... » read more