Email Form Gmail Security Problems

I have set up the Contact form and added my Gmail email address and other details but I had a warning from Google highlighting that something was trying to access my account.

I also get this on the web page: **There was an error sending the form: SMTP Error: Could not authenticate. **

This is the code in my config (obviously edited):

  'email' => [
    'transport' => [
      'type' => 'smtp',
      'host' => '',
      'port' => 465,
      'security' => true,
      'auth' => true,
      'username' => 'sul@s***',
      'password' => '***',

You probably need to change your gmail setting to allow access through less secure apps.

But Google will give you lots of warnings about it being very dangerous. They even consider Thunderbird a less secure app that shouldn’t be used.

If you don’t have another SMTP server to try, you could give Mailgun a shot. They do SMTP, and you get the first 10,000 emails a month free.