Title: Authorization Error
Last modified: February 2, 2023

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# Authorization Error

 *  Resolved [Mirko](https://wordpress.org/support/users/mirkodii/)
 * (@mirkodii)
 * [3 years, 4 months ago](https://wordpress.org/support/topic/authorization-error-18/)
 * Hi team,
 * occasionally sending mails via “other SMTP” fails because of authorization failed”
   error.
 * Our mailserver hosting provider checked the logs and replied:
 * > In the logs I now find the following entries, which point to the problem:
   > 11:05:43.007 1 SMTPI-xxxxxx(xxx.de) failed to open ACCOUNT() for [134.119.0.
   > xxx]:xxxxx->[212.25.8.xxx]:587. Error Code=incorrect E-mail address
   > Based on this entry, I suspect that the mail server sometimes does not receive
   > the e-mail address. Then he cuts the connection because no authentication can
   > take place (without username). Hence there must be a problem with the plugin.
 * Could you please check if there is any bug.
    -  This topic was modified 3 years, 4 months ago by [Mirko](https://wordpress.org/support/users/mirkodii/).

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Thread Starter [Mirko](https://wordpress.org/support/users/mirkodii/)
 * (@mirkodii)
 * [3 years, 4 months ago](https://wordpress.org/support/topic/authorization-error-18/#post-16436194)
 * Adding to my original support post from yesterday:
 * After further investigation, the problem seems to mainly occur with WooCommerce
   customer account related mails, e.g. password reset mails to users.
 * Maybe that helps to identify any bug.
 *  Plugin Support [Amimul Ihsan](https://wordpress.org/support/users/amimulihsanmahdi/)
 * (@amimulihsanmahdi)
 * [3 years, 4 months ago](https://wordpress.org/support/topic/authorization-error-18/#post-16447322)
 * Hello there,
   Can you please mention which email sending service you are using
   on your website? Do you have multiple connection set up? Please mention these,
   it will help us to identify the issue.
 * Let me know the update.
 * Thank you

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Authorization Error’ is closed to new replies.

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## Tags

 * [authentication](https://wordpress.org/support/topic-tag/authentication/)

 * 2 replies
 * 2 participants
 * Last reply from: [Amimul Ihsan](https://wordpress.org/support/users/amimulihsanmahdi/)
 * Last activity: [3 years, 4 months ago](https://wordpress.org/support/topic/authorization-error-18/#post-16447322)
 * Status: resolved