Plesk Obsidian email
Create the mailbox in Plesk, then connect apps with the assigned server hostname
The email address is also the username. Create a strong, unique password and quota in Plesk. For an email app, use your assigned hosting server, such as ukc10.uk, with IMAP 993 and SMTP 587. This avoids certificate-name warnings.
Create an email address in Plesk
- 1Open Plesk
Sign in to the Client Area, open the shared hosting service and launch its Plesk control panel.
- 2Open Mail
Select Mail Accounts or Email Addresses, then choose Create Email Address.
- 3Set the address and password
Choose the local part, select the correct domain and generate a unique mailbox password.
- 4Set storage and save
Choose a quota within the hosting allowance, create the mailbox and send a test message.
Recommended email-app settings
| Service | Server and port | Security |
|---|---|---|
| Incoming IMAP | Assigned server, port 993 | SSL/TLS |
| Outgoing SMTP | Assigned server, port 587 | STARTTLS with authentication |
| SMTP alternative | Assigned server, port 465 | Implicit SSL/TLS with authentication |
| Username | Full email address | Use for incoming and outgoing |
Test before adding every device
Open webmail
Use webmail for your assigned server and confirm the new username and password work.
Send out
Send to an external address and verify the message leaves the Outbox without an authentication warning.
Reply back
Reply from the external mailbox and confirm IMAP receives the message.
Only then add devices
Use the same verified server, username and security settings in each supported app.
Mailbox questions
Should I use POP or IMAP?
Use IMAP for most customers because messages and folders remain synchronised across devices. POP is mainly for a deliberate download-to-one-device workflow.
Why can I receive but not send?
Enable SMTP authentication, use the full email address as username and use port 587 with STARTTLS or port 465 with implicit TLS.
Where do I change the quota?
Open the mailbox in Plesk and edit its storage allocation, staying within the hosting plan’s total allowance.
Create, test, connect
Verify the mailbox in webmail before configuring apps
That separates account problems from device-specific setup problems.