Title: Errors after update
Last modified: May 17, 2023

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# Errors after update

 *  Resolved [mrhobbeys](https://wordpress.org/support/users/mrhobbeys/)
 * (@mrhobbeys)
 * [3 years ago](https://wordpress.org/support/topic/errors-after-update-23/)
 * I have had several errors since the most recent updates. Now I have errors when
   changing settings and trying to get my emails sending again:
 *     ```wp-block-code
       Warning: Undefined array key "fallback_smtp_password" in /srv/users/mysite/apps/mysite/public/wp-content/plugins/post-smtp/Postman/PostmanInputSanitizer.php on line 166
   
       Warning: Cannot modify header information - headers already sent by (output started at /srv/users/mysite/apps/mysite/public/wp-content/plugins/post-smtp/Postman/PostmanInputSanitizer.php:166) in /srv/users/mysite/apps/mysite/public/wp-includes/pluggable.php on line 1427
   
       Warning: Cannot modify header information - headers already sent by (output started at /srv/users/mysite/apps/mysite/public/wp-content/plugins/post-smtp/Postman/PostmanInputSanitizer.php:166) in /srv/users/mysite/apps/mysite/public/wp-includes/pluggable.php on line 1430
       ```
   
 * I tried to add Office365 using OAuth SMTP, which shows as an option, but it takes
   me straight to username/password.
 * ![](https://i0.wp.com/spencerheckathorn.com/wp-content/uploads/sites/35/2023/
   05/email-options-selected.png?ssl=1)

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

 *  [smakazmi15](https://wordpress.org/support/users/smakazmi15/)
 * (@smakazmi15)
 * [3 years ago](https://wordpress.org/support/topic/errors-after-update-23/#post-16744034)
 * Hi [@mrhobbeys](https://wordpress.org/support/users/mrhobbeys/) ,
 * I hope you are doing well.
 * Reset Post SMTP and try reconfiguring, Office365 Auth 2.0 is Pro Add-on, but 
   you can use Office365 using Manual Settings.
 * Still is there any thing we can help you with Do let us know?
 * Thanks and regards,
   Support Team – WPExperts
 *  [smakazmi15](https://wordpress.org/support/users/smakazmi15/)
 * (@smakazmi15)
 * [3 years ago](https://wordpress.org/support/topic/errors-after-update-23/#post-16760416)
 * Hi [@mrhobbeys](https://wordpress.org/support/users/mrhobbeys/) ,
 * I hope you are doing great. We have been waiting to hear from you for the last
   six days and assume your issue has been resolved.
 * Feel free to reopen this issue in case the problem persists.
 * Thanks and regards,
   Support Team – WPExperts

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

The topic ‘Errors after update’ is closed to new replies.

 * ![](https://ps.w.org/post-smtp/assets/icon-128x128.gif?rev=3209655)
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## Tags

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

 * 2 replies
 * 2 participants
 * Last reply from: [smakazmi15](https://wordpress.org/support/users/smakazmi15/)
 * Last activity: [3 years ago](https://wordpress.org/support/topic/errors-after-update-23/#post-16760416)
 * Status: resolved