David Ozokoye

Senior Technical Writer

Expertise

WordPress
Technical Documentation
Web Development (React & Django)
SEO
cPanel
Graphic Design

Highlights

David is a Technical Writer for the WPForms team at Awesome Motive. He has a BSc in Electrical Electronics Engineering from the University of Jos, Nigeria, and has been using WordPress since 2018.

Before joining the WPForms team in 2022, David worked as the content team lead for a WordPress support site, where he wrote WordPress-related content and managed other writers.

David creates easy-to-understand guides and product education for various Awesome Motive products, including WPForms, WP Mail SMTP, SendLayer, and Easy WP SMTP.

Aside from his work at Awesome Motive, David has produced many technical articles for various brands, focusing on WordPress and web development topics. Away from the computer, he enjoys playing video games and roller skating.

SMTP Error: Invalid_request: AADSTS50194

Overview The ‘invalid_request: AADSTS50194’ error often occurs on sites sending emails through Microsoft’s API. It indicates that the web application you set up in Azure is not doesn’t support personal accounts or multiple tenants. When this happens, you’ll see an error message that reads: ‘Invalid_request: Application is not configured as a multi-tenant application’. Causes The […]

SMTP Error 521: Server Does Not Accept Mail

Overview ‘Error 521: Server does not accept mail’ indicates that a mail server isn’t set up to accept incoming emails. It often occurs in mail relay situations where servers act as intermediaries in the email delivery process. Causes This error is often related to mail relay servers. Below, we’ve highlighted the main causes of the […]

SMTP Error 450: Requested Mail Action Not Taken: Mailbox Unavailable

Overview ‘Error 450: Requested mail action not taken – mailbox unavailable’ is a temporary error. It indicates that the receiving email server cannot process the email request at the moment. This error can prevent emails from being sent successfully through your site, but it may be possible to retry later. Causes There are several reasons […]

Error: Gmail Could Not Authenticate

Overview The ‘Gmail could not authenticate’ SMTP error often occurs when trying to send emails through Gmail’s API on your website. It indicates that the SMTP server is unable to verify your connection. In WP Mail SMTP, this error occurs when sending emails through the Other SMTP mailer. Causes There are two main reasons why […]

SMTP Error 554: Transaction Failed

Overview The ‘SMTP error 554: transaction failed’ issue occurs when emails from your website fail to be delivered to the user’s inbox. This error indicates that the transaction between your SMTP server and the recipient’s email server failed. Causes There are several reasons why the ‘error 554: transaction failed’ might occur. Below, we’ll highlight the […]

SMTP Error: MessageRejected (client): Email Address Is Not Verified

Overview The ‘MessageRejected (client): Email address is not verified’ error typically occurs on sites sending emails through the Amazon SES email server. This error prevents emails from being sent successfully through your site when using Amazon SES as your mailer. Causes This error typically occurs if your Amazon account is still in Sandbox Mode and […]

About Our Team

David Ozokoye