Plesk mailbox passwords
Use the Plesk Mail screen for normal mailbox password changes
Open Mail in the correct Plesk subscription, select the mailbox, set a strong unique password and save. Then update every email app and device. The command-line route is intended for authorised server administrators, not ordinary shared-hosting customers.
How do you reset the mailbox through Plesk?
Follow the sequence and stop before any step that does not match the service shown in your UKC account.
- 1Open the correct subscription
Use the secure Plesk link from the hosting welcome email and confirm the expected domain and server.
- 2Open Mail and the mailbox
Select the complete email address. Check that it is a mailbox rather than only a forwarding address.
- 3Set a strong unique password
Use Plesk’s generator or a password manager and save. Store it securely rather than in notes or a spreadsheet.
- 4Update and test every client
Change the password in webmail, desktop, phone and website SMTP settings. Test receiving and authenticated sending.
When is the command line appropriate?
Only an authorised administrator of a Plesk server should use the CLI, with a rollback and a method that avoids exposing secrets.
Shared hosting customer
Use Plesk. Shared customers do not need root or shell access to change a mailbox password.
Server administrator
Use the current Plesk Obsidian mail CLI documented for the installed version and keep the secret out of logs and history.
Website application
Update WordPress, forms or application environment settings that authenticate as the mailbox.
Lost access
Reset through Plesk or ask UKC Support to confirm the account route. Do not send the old or new password.
| After changing | Test |
|---|---|
| Webmail | Sign in and send a test |
| Phone and desktop | Receive and send with SMTP authentication |
| Website forms | Submit a safe test enquiry |
| Saved credentials | Remove the old password from every device |
Common questions
Why does webmail work but my phone fails?
The phone may still have the old password or wrong outgoing authentication settings.
Will changing the password delete messages?
No. It changes authentication, not mailbox contents.
Can support tell me the existing password?
Passwords should not be retrievable in plain text. Reset it through the supported account route.
Why did the website contact form stop sending?
The application may authenticate using the old mailbox password. Update its secure mail configuration.
Need to reset a mailbox?
Use Plesk and update every saved login
Test webmail, email apps and website sending before considering the task complete.