Hi @rodricus
Thanks for reaching out and we apologise for the delay.
Please note that WP Mail Logging doesn’t affect the delivery of your emails. That is potentially why no errors were appearing when checking your logs. If there was a specific issue preventing your client’s emails from being sent in the first place, then an error would have likely appeared.
Just to confirm are you using an SMTP plugin like WP Mail SMTP or Easy WP SMTP for example?
Those plugins help your site send emails more reliably.
For example, when using WP Mail SMTP, you can choose to have your emails authenticated and sent reliably to your recipients using one of the popular email delivery integrations like Amazon SES, Outlook, Zoho, Gmail, SendGrid, Mailgun, SMTP.com, or SendLayer. Alternatively, you can use WP Mail SMTP to send emails through your preferred email provider’s SMTP mail configurations.
In simple terms, it will be very similar to logging in to your email account and sending an email. In this way, you will have a much better chance of delivering your emails to the recipients without the email getting flagged as spam.
In more technical terms, all of your website’s emails sent with the WordPress default wp_mail() function will be routed through your WP Mail SMTP configured mailer.
Lastly, WP Mail SMTP can provide more specific error messages based on which point your emails are failing to be delivered.
I hope this helps ??
