Hello @martenw
I’m glad to hear that the issue is not appearing anymore, but I’m also a bit concerned. It’s possible that the email address was either not entered or entered incorrectly. The error message you mentioned is designed to prompt on the Dashboard, not within the settings, which is why this situation puzzled me.
If the issue resurfaces, please don’t hesitate to open a new thread. Kindly include screenshots of both the error message and the Message tab from the Post SMTP settings for better clarity.
Looking forward to assisting you further if needed!
Warm regards,
Support Team – WP Experts