David

Hi there @peter8nss,

Our developers are looking into making such an adjustment. They have further testing to do, but if it does become a change we apply, we’ll push it out through an update to the plugin. I can’t say if or when that may happen though, but it is something they’re looking into.

I hope that helps! Have a great day!

Hi there @humo,

Thanks for reaching out! It looks like your host will need to check into this. If you can copy/paste this error over to their support team, they should be able to help you out. Specifically, what they’ll most likely want to look at is this part:

Connection failed. stream_socket_enable_crypto(): Peer certificate CN=ns4.nrgdns.net' did not match expected CN=mail.ashir.com.ar’

I hope that helps! Have a great day! ??

Hi there @peter8nss,

Thanks for reaching out! We’re checking into this for you. I’ll let you know when I have more information.

Thanks!

Hi there @esuprofwriting,

Thanks for reaching out! The 524 error is returned by Cloudflare, and indicates that there is a timeout occurring on your server. You mentioned increasing the max upload size in PHP.ini, but you may need to also increase the max execution time, post max size, and memory limit.

Regarding the 403 being thrown when you upload the .dat file, you might want to check with your host. Some hosts use a security software called ModSecurity, which can block files such as .dat files. They can check their logs to see if that may be the issue.

I hope that helps! Have a great day!

Hi there @mihir1337,

I hope all is well. We haven’t heard back from you, so we’ll be closing this thread for now. If you still need assistance, feel free to respond to the thread again and we’ll be happy to help.

Have a great day!

Hey there @medienwerkstatt,

Thanks for taking the time to leave a rating and a review! We’re glad to hear that WP Mail SMTP has been the best for your client websites. We hope it continues to serve you well for years to come.

Have a great day!

Thanks @nehari8891! We certainly appreciate it.

And thank you so much for taking the time to leave a rating and a review. We’re glad to hear that you rate our plugin 5-Stars!

Have a great day!

Hey @mihir1337,

When you get a moment, please check your WordPress media library to see if the media files were imported. This should help us determine where the issue may be popping up.

Thanks!

Hi there @mihir1337,

Thanks for reaching out. We’re checking into this, but if you can let us know which theme you’re using, that should help.

Thanks!

Hi there @sinapars,

Thanks for your patience. One of our developers took a look and wrote up a code snippet that should help you out:

// Add proxy settings to the Google client in the WP Mail SMTP plugin.
add_filter( 'wp_mail_smtp_providers_gmail_auth_get_client_custom_options', function ( $client ) {
  $proxy_scheme   = 'https'; // Change to 'http' ,'socks4' or 'tcp' if needed.
  $proxy_host     = defined( 'WP_PROXY_HOST' ) ? WP_PROXY_HOST : null;
  $proxy_port     = defined( 'WP_PROXY_PORT' ) ? WP_PROXY_PORT : null;
  $proxy_username = defined( 'WP_PROXY_USERNAME' ) ? WP_PROXY_USERNAME : null;
  $proxy_password = defined( 'WP_PROXY_PASSWORD' ) ? WP_PROXY_PASSWORD : null;

  $proxy_url = null;

  if ( $proxy_host && $proxy_port ) {
   $proxy_url = $proxy_scheme . '://' . $proxy_host . ':' . $proxy_port;
   if ( $proxy_username && $proxy_password ) {
    $proxy_url = $proxy_scheme . '://' . $proxy_username . ':' . $proxy_password . '@' . $proxy_host . ':' . $proxy_port;
   }
  }

  $httpClient = new \WPMailSMTP\Vendor\GuzzleHttp\Client( [
   'proxy' => $proxy_url,
  ] );

  $client->setHttpClient( $httpClient );

  return $client;
} );

In case it helps, here’s a tutorial with the most common ways to add custom code like this: https://www.wpbeginner.com/beginners-guide/beginners-guide-to-pasting-snippets-from-the-web-into-wordpress/

For the most beginner-friendly option in the guide above, I’d recommend using the WPCode plugin. This will protect your code from updates and keep it easy to manage right within your WordPress admin area.

I hope that helps! Have a great day!

Hi there @leigh330s and @indalia,

Thanks for reaching out! The issue in the other support thread has to do with a change Brevo recently introduced. It’s a security feature that prevents email sending from unauthorized IPs. We’ve seen some cases where it can take several hours (sometimes more than 24 hours) for an IP to be recognized.

However, the first thing we need to do is determine where the issue is coming from so we can get both of you pointed in the right direction.

When you have trouble getting email, the first step is to check the debug logs. If there is an issue communicating with the mailer service, the debug logs will often show an error message that can help point to the problem. Check out this guide on our site. It walks through our Debug feature. Using the Debug system in WP Mail SMTP, you’re able to check the logs of failed emails and any available error messages: https://wpmailsmtp.com/docs/how-to-debug-email-sending-issues-in-wp-mail-smtp/

Check your debug logs for any error messages. They will often point to the cause. If you don’t see any errors in the debug log, check with the mailer service (Brevo, for instance) to check their logs. If there are no errors in WP Mail SMTP, generally that means the email was successfully transferred to the mailer service. In that case, there may be an issue occurring on their side of things (such as a suppressed email or some other trouble preventing the email from being delivered successfully).

I hope that helps! Have a great day!

Hi there @sinapars,

Thanks for reaching out! We’re looking into this and I will update you as soon as I have more details. In the meantime, if you have any additional questions or info to add, just let me know here!

Thanks!

Hi there @slates27,

That’s great to hear! I’m glad you got that sorted out.

In case it helps in the future, generally, if a host blocks third-party SMTP connections, API connections will still be available. All of our other mailers use API connections.

I hope that helps! Have a great day!

Hi there @dan1980,

Can you let us know which version of Rank Math SEO you’re using? Also, for the duplicate emails, do they have the same backtrace? Basically, we’re trying to find out if duplicates have the same backtrace as each other.

Thanks!

Hi @dan1980,

Thanks for sending that over. I passed it over to our team so we can check further into this. I’ll let you know when I have more information.

Thanks!