SMTP Error: Could not authenticate

Hi @dougeefresh ,

Thanks for reaching out!

Generally speaking, the “Username command failed: 535” error occurs when there are incorrect credentials or an issue with the SMTP server occurred while attempting to send the test email.

First off, please ensure that you had followed the instructions outlined in our documentation for setting up each necessary step when connecting to your SMTP server.

If you followed the steps correctly and are still experiencing issues, please ensure you do not also have any other SMTP plugins enabled at the same time as Easy WP SMTP as that might cause a conflict to occur.

Lastly, do you have any other SMTP server/credentials that you can test instead of the current one? Our documentation mentions some alternatives you can try to confirm if this is a general issue or if it’s specific to the SMTP server.

In case it helps to know, you can try setting up a free trial account with SendLayer and connect using their SMTP credentials. Please note that their trial allows for 200 free emails in total, but that should be sufficient for testing purposes.

I hope this helps! If you have any questions, could you please let me know?

Thanks! 🙂