|Posted: 2018-10-15 13:24|
SMTP code error 535 5.7.3 authentication not successful
|Posted: Mon, 15.10.2018 - 21:03|
This is a generic email error, you can find steps to resolve this on our Knowledge Base Page: https://www.workbooks.com/help/common-email-errors
Once the page is open, scroll down to "Authentication Unsuccessful" and you will find the resolution within.