Title: SMTP errors
Last modified: October 25, 2021

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# SMTP errors

 *  Resolved [wbenterprises](https://wordpress.org/support/users/wbenterprises/)
 * (@wbenterprises)
 * [4 years, 5 months ago](https://wordpress.org/support/topic/smtp-errors-3/)
 * Hello,
 * After setting up Newsletter, I cannot send any test email from the plugin.
 * When I try, I see a couple of errors.
 * First, WP Mail SMTP plugin reports:
 * Email Source: Newsletter
    Mailer: Other SMTP SMTP Error: Could not authenticate.
 * /home/u494258243/domains/…/public_html/wp-content/plugins/newsletter/includes/
   mailer.php (line: 362)
 * Second, Newsletter Diagnostic reports:
 * Last test failed with error “Module ‘sqlite3’ already loaded”.
 * What do I do to fix these issues? I am not using the built-in SMTP of Newsletter.
   I am using:
 * WP Mail SMTP v3.1.0
    Wordpress v5.7.3 PHP v7.4
 * Thank you.

Viewing 1 replies (of 1 total)

 *  Thread Starter [wbenterprises](https://wordpress.org/support/users/wbenterprises/)
 * (@wbenterprises)
 * [4 years, 5 months ago](https://wordpress.org/support/topic/smtp-errors-3/#post-15001730)
 * Please disregard. Apparently, the password was changed for the primary SMTP email
   account. Updating WP Mail SMTP was the solution.

Viewing 1 replies (of 1 total)

The topic ‘SMTP errors’ is closed to new replies.

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 * 1 reply
 * 1 participant
 * Last reply from: [wbenterprises](https://wordpress.org/support/users/wbenterprises/)
 * Last activity: [4 years, 5 months ago](https://wordpress.org/support/topic/smtp-errors-3/#post-15001730)
 * Status: resolved