Follow the steps below to add and configure your email account in the macOS Mail app.
Prerequisites
- The Mail app installed on macOS.
- The full email address and its password. The address is created in the Apanel console, under E-mail addresses.
- The name of your domain's email server: it is shown in Hosting management, in the Misc informations box on the left, on the line E-mail SSL server name (POP3S / IMAPS / SMTPS). This article uses
mail01.swisscenter.com; if your console shows another name, use the one from the console.
Add the account
On recent versions of macOS, open Mail, choose Mail > Add Account… from the menu bar, select Other Mail Account and click Continue (see Apple's guide: Add email accounts in Mail on Mac). The screenshots below show an older macOS presentation (Mail > Preferences > Accounts): menu labels may differ on your Mac, and the screenshots do not show our settings. Always enter the values given in the text.
- Launch Mail.

- Go to Mail preferences.

- The Mail configuration window appears. Click the + sign.

- Check the box "Add another Mail account…" then click Continue.

- Enter your name, your full email address and the mailbox password, then click "Create".

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Mail then asks for the server settings. Select the account type IMAP, then fill in:
- Incoming mail server:
mail01.swisscenter.com;
- User name: your full email address;
- Password: the mailbox password;
- Outgoing mail server:
mail01.swisscenter.com, with the same user name and password.
Then click "Next". If Mail detects other settings on its own, replace them with these. To compare POP and IMAP, see POP or IMAP: what are the differences and which protocol should you choose?.
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Fill in the outgoing server information the same way if Mail asks for it again.
Check the outgoing server (SMTP)
- In the account settings, click the drop-down menu of the outgoing server (SMTP).

- Select "Edit SMTP server list".

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Select your account's server, then check:
- the server name:
mail01.swisscenter.com;
- the port:
465, with TLS/SSL enabled;
- the authentication: Password;
- the user name: your full email address, and the mailbox password.
If port 465 is blocked by your network, use port 587 with STARTTLS. Confirm with "OK". Older versions of macOS sometimes offer a different authentication method (for example "MD5 Challenge-Response"): choose Password.
Check the incoming server (IMAP)
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Go to the account's "Advanced" tab. Check that the port is 993 and that the "Use SSL" box is checked: without it the password would travel unencrypted. Port 143 without SSL is not to be used.
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Close the window and save the changes so that the configuration applies.
Send yourself a test message to check receiving and sending.
The exact location of the fields depends on your version of macOS: Apple's documentation describes it for each version. The settings common to all email software are listed in Email settings for all clients (IMAP, POP, SMTP).