Title: Authentication Data Errors
Last modified: July 12, 2021

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# Authentication Data Errors

 *  [yehudah](https://wordpress.org/support/users/yehudah/)
 * (@yehudah)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/authentication-data-errors/)
 * Hello,
 * I want to be very clear about this repeating error:
 * **This is not a plugin issue!**
 * Possible solutions:
    - Change initial password – login by web
    - [SPF Record](https://wordpress.org/support/topic/incorrect-authentication-data-port-587-smtp-starttls-siteground/#post-10873384)
    - [Security Policy – Email service side](https://wordpress.org/support/topic/office-365-5-7-3-authentication-unsuccessful/#post-12488125)
    - [Cpanel security policy](https://postmansmtp.com/incorrect-authentication-data/)
 * I will update this thread or this page for more possible solutions:
    [https://postmansmtp.com/incorrect-authentication-data/](https://postmansmtp.com/incorrect-authentication-data/)

The topic ‘Authentication Data Errors’ is closed to new replies.

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## Tags

 * [Authorization Failed](https://wordpress.org/support/topic-tag/authorization-failed/)

 * 0 replies
 * 13 participants
 * Last reply from: [yehudah](https://wordpress.org/support/users/yehudah/)
 * Last activity: [6 years, 3 months ago](https://wordpress.org/support/topic/authentication-data-errors/)
 * Status: not a support question