Title: Keys Changed
Last modified: April 20, 2026

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# Keys Changed

 *  Resolved [assad1999](https://wordpress.org/support/users/assad1999/)
 * (@assad1999)
 * [1 month, 2 weeks ago](https://wordpress.org/support/topic/keys-changed/)
 * Hello there,
   I have moved my website to a new server and my API. Here is the 
   message:FluentSMTP Plugin may not work properly. Looks like your Authentication
   unique keys and salts are changed. Reconfigure SMTP SettingsMay I know the reason?

Viewing 1 replies (of 1 total)

 *  Plugin Support [Ibrahim Sharif](https://wordpress.org/support/users/ibrahimsharif/)
 * (@ibrahimsharif)
 * [4 weeks, 1 day ago](https://wordpress.org/support/topic/keys-changed/#post-18902776)
 * Hello [@assad1999](https://wordpress.org/support/users/assad1999/),
 * Thank you for reaching out to the FluentSMTP support team. I hope you are having
   a great day!
 * I understand you are seeing a notification regarding your Authentication unique
   keys and salts after migrating your website to a new server. I would be happy
   to clarify why this is happening.
 * WordPress uses unique salt keys to securely encrypt sensitive data saved within
   your database. When you move a website to a new server, these salt keys can occasionally
   be regenerated or altered by security plugins or server-side environment configurations.
   Because FluentSMTP uses these specific keys to encrypt your SMTP credentials,
   a change in these keys essentially renders the previously stored credentials “
   unreadable” or invalid to the plugin, as they no longer match the encryption 
   pattern expected by the new environment.
 * To resolve this and get your emails flowing again, you will simply need to re-
   enter your SMTP credentials in the FluentSMTP settings. Once you save them, the
   plugin will encrypt them using your site’s current salt keys, and everything 
   will function perfectly once more.
 * Please let me know if you run into any trouble during the reconfiguration process,
   and I will be more than happy to assist you further!

Viewing 1 replies (of 1 total)

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 * 1 reply
 * 2 participants
 * Last reply from: [Ibrahim Sharif](https://wordpress.org/support/users/ibrahimsharif/)
 * Last activity: [4 weeks, 1 day ago](https://wordpress.org/support/topic/keys-changed/#post-18902776)
 * Status: resolved