Creating mailboxes in Plesk is a straightforward way to set up professional email addresses for your domain, whether you need a single address for a small business or multiple mailboxes for different team members. In a hosting environment, this is typically managed from the control panel, where you can define the mailbox name, password, storage quota, and access settings in just a few steps.
Before you begin, make sure your domain is already added to Plesk and that mail services are enabled for it. If your hosting package includes email hosting, you can usually create and manage mailboxes without needing any separate mail server software or extra configuration. Once the mailbox is created, you can access it through webmail, desktop email clients, or mobile devices using standard IMAP or POP3 settings.
Why set up mailboxes in Plesk
Using Plesk for business mailboxes gives you a central place to manage email accounts tied to your domain. This is useful for organizations that want branded email addresses such as [email protected], [email protected], or [email protected]. It also helps keep administration simple, especially when the hosting platform already includes DNS, email routing, and mailbox management tools.
Common reasons to create mailboxes in Plesk include:
- Setting up professional email addresses for staff or departments
- Separating business correspondence from personal email
- Managing storage limits for each mailbox
- Using webmail or email apps with the same hosted domain
- Applying consistent email settings across your hosting account
If your website and email are hosted together, mailbox setup is usually faster because DNS and mail routing can be managed from the same control panel. That said, it is still important to confirm the domain’s mail settings, especially if you use an external DNS provider or third-party email service.
Before you create a mailbox
Take a moment to check the following items in Plesk before creating the mailbox. This reduces setup issues and helps avoid delivery problems later.
Check that the domain is active
The domain must be added to your Plesk subscription and should have mail service available. If the domain is parked, suspended, or not yet fully configured, mailbox creation may not work correctly.
Confirm mail services are enabled
In many hosting setups, mail service can be enabled or disabled per domain. Make sure email is switched on for the domain you want to use.
Prepare the mailbox name
Choose a mailbox name that matches your business use. Examples include:
For business email, short and clear mailbox names are often easier to manage. If multiple people need access, you may prefer role-based addresses such as support@ or billing@.
Decide on a strong password
Mailbox passwords should be unique and strong. Avoid reusing passwords from other services. A strong password helps protect both email content and any account recovery processes connected to the mailbox.
How to create a mailbox in Plesk
The exact screen labels may vary slightly depending on your Plesk version and hosting provider, but the overall process is usually the same.
Step 1: Sign in to Plesk
Log in to your Plesk control panel using your hosting credentials. If you manage multiple subscriptions, choose the correct domain or subscription first.
Step 2: Open the Mail section
From the main dashboard or the left-hand menu, select Mail. This area contains the tools for creating mailboxes, aliases, forwarding rules, and mail settings for the selected domain.
Step 3: Make sure mail is enabled for the domain
If the domain is not already configured for email, enable mail service first. In some Plesk setups, this appears as an option such as Activate Mail Service on this Domain or a similar control within the domain’s mail settings.
Step 4: Click to create a new mailbox
Choose the option to add a new email address or mailbox. You will usually be asked to enter the local part of the address, such as info for [email protected].
Step 5: Enter the mailbox name
Type the name of the mailbox you want to create. Keep it consistent with your business structure. If this mailbox is for a department, use a shared role name. If it is for an individual, use the person’s name or a standard internal format.
Step 6: Set a password
Create a password for the mailbox. Some hosting platforms allow you to generate a strong password automatically. If that option is available, it is usually a good choice. Store the password securely, especially if the mailbox will be used by multiple devices or email clients.
Step 7: Set the mailbox size or quota
Choose how much storage the mailbox should have. This depends on your hosting plan and how heavily the account will be used. For example:
- Small business inboxes with light traffic may need only a modest quota
- Shared role accounts such as support@ often require more space
- Users who receive attachments regularly may need a larger allocation
If your hosting plan has limited mailbox storage, setting clear quotas helps prevent one inbox from using too much space.
Step 8: Save the mailbox
Once the name, password, and quota are entered, save the changes. The mailbox should appear in the list of available email accounts for that domain.
How to access the new mailbox
After the mailbox is created, you can access it in several ways depending on how your hosting environment is set up.
Webmail access
Most Plesk-enabled hosting platforms provide webmail access. This is useful if you want to log in through a browser without configuring an email app. Your hosting provider may offer webmail tools such as Roundcube or Horde, depending on the platform configuration.
Email client setup
You can also connect the mailbox to desktop or mobile email clients such as Outlook, Apple Mail, Thunderbird, or the default Mail app on smartphones. In most cases, you will need:
- The full email address as the username
- The mailbox password
- Incoming mail server details
- Outgoing SMTP server details
- Correct ports and encryption settings
Typical protocols used for business email include IMAP for synchronisation across devices and SMTP for sending messages. POP3 may also be available, but IMAP is usually the better choice for modern business use.
Finding the server settings
If you do not know the incoming and outgoing mail server values, check the mail configuration page in Plesk or your hosting welcome documentation. Many hosting providers display the exact settings inside the mailbox or mail client setup screen.
Recommended mailbox settings for business use
For a reliable and professional email setup, consider the following best practices when creating mailboxes in Plesk.
Use IMAP for most users
IMAP keeps messages synchronised across all devices. This is ideal when staff check email from office desktops, laptops, and mobile phones.
Set realistic quotas
A mailbox quota that is too small can lead to bounced messages or rejected incoming mail. A quota that is too large may use hosting resources inefficiently. Match the quota to the purpose of the mailbox.
Separate personal and shared accounts
Where possible, give each employee their own mailbox and use shared addresses only for general enquiries or group workflows. This improves accountability and makes it easier to manage access if staff change roles.
Use clear naming conventions
Keep mailbox names consistent across your organisation. Common formats include:
- first.last@domain
- role@domain
- department@domain
Consistency makes mailbox management easier, especially when several accounts are created in the same hosting subscription.
Common mailbox setup issues in Plesk
Even though mailbox creation is usually simple, some issues can appear during or after setup. These are the most common ones and how to handle them.
Mailbox creation option is missing
If you do not see the option to create a mailbox, the mail service for the domain may be disabled, or your hosting plan may not include email hosting. Check the domain’s mail settings or contact your hosting provider if necessary.
Cannot log in to webmail
Review the mailbox username and password. Make sure you are using the full email address if that is required by your hosting platform. Also confirm that the mailbox is active and that the password was saved correctly.
Emails are not arriving
Incoming mail issues are often caused by DNS problems, incorrect MX records, or mail service configuration. If the mailbox exists but messages are not arriving, verify that the domain points to the correct mail server and that your DNS records have been updated.
Cannot send mail from an email client
Sending problems are usually related to SMTP settings, authentication, or encryption. Check that the outgoing server details match your hosting provider’s instructions and that SMTP authentication is enabled in the email client.
Mailbox quota is full
If the mailbox reaches its storage limit, new messages may be rejected. Delete unnecessary emails, empty the trash folder, or increase the quota if your hosting package allows it.
How to manage mailboxes after creation
Mailbox management in Plesk does not stop after setup. Regular maintenance helps keep email reliable and secure.
Change passwords when needed
If a password is shared, exposed, or simply outdated, update it immediately. After changing the password, remember to update any connected devices or email clients.
Adjust quota settings
Review mailbox usage from time to time. Shared inboxes often need additional space as the business grows.
Disable or remove unused accounts
When staff leave or a mailbox is no longer needed, disable it or remove it to reduce security risk and avoid confusion.
Create aliases or forwarding rules
Some businesses prefer to receive messages from multiple addresses in one mailbox. In Plesk, you can often create aliases or forwarding rules so that mail sent to one address is delivered to another mailbox. This is useful for role-based addresses and temporary campaigns.
Mailbox security tips
Email remains one of the most important services in a hosting environment, so basic security should be part of every mailbox setup.
- Use strong, unique passwords for each mailbox
- Enable two-factor authentication if available for the control panel
- Keep recovery details up to date
- Review mailbox access after staff changes
- Use secure IMAP, POP3, and SMTP connections when supported
- Regularly check spam filtering and mail logs if delivery looks unusual
Where supported by your hosting platform, it is also worth reviewing SPF, DKIM, and DMARC records for the domain. These DNS records help improve email deliverability and reduce the chance of messages being treated as suspicious by receiving mail servers.
When to contact hosting support
If mailbox creation fails, mail service does not activate, or you cannot connect email clients after following the standard steps, your hosting provider or managed hosting support team may need to check the server-side configuration. This is especially important if the issue affects all mailboxes on the domain rather than just one account.
Contact support if you need help with:
- Enabling mail service for a domain
- Correcting MX or DNS records
- Setting up SMTP authentication
- Fixing delivery errors or rejected messages
- Understanding mailbox limits on your hosting plan
FAQ
How many mailboxes can I create in Plesk?
The number of mailboxes depends on your hosting plan and any account limits set by your provider. Some plans allow a fixed number of mailboxes, while others offer more flexible email storage.
Can I create a mailbox without a website?
Yes, if your hosting account includes domain and mail services, you can often create mailboxes even if the website is not yet live. The domain still needs to be correctly configured in Plesk.
What is the best mailbox type for business use?
For most business users, a standard mailbox with IMAP access is the best option. It works across multiple devices and keeps messages synchronised.
Can I use the mailbox in Outlook or Gmail?
You can usually connect the mailbox to Outlook and other email clients using IMAP or POP3 with SMTP for sending. Gmail can sometimes fetch mail from an external mailbox, but the setup depends on the mail service and client limitations.
Why is my mailbox not receiving emails after setup?
This is often caused by DNS or MX record issues rather than the mailbox itself. Check that mail routing is correct for the domain and that your DNS changes have fully propagated.
Can I rename a mailbox later?
In many cases, mailbox names cannot be edited directly. You may need to create a new mailbox and migrate messages if a different address is required.
Conclusion
Setting up mailboxes in Plesk is an essential task for hosting users who need reliable professional email on their domain. Once the domain mail service is enabled, creating a mailbox usually takes only a few minutes: choose the address, set a secure password, assign a quota, and connect it to webmail or an email client.
For the best results, keep mailbox naming consistent, use strong security practices, and check DNS and mail settings if messages are not delivering as expected. With the right configuration, Plesk provides a practical and manageable way to handle business email from the same hosting platform used for your website.