Setup macOS 10.15 Mail

The purpose of this page is to describe how to set up a new email account, for example, an OlympusNet email address such as or

During the account setup, you’ll be asked to choose between POP and IMAP. The choice matters. We recommend POP for the reasons described at POP or IMAP?

To modify an existing email account, that is, an already existing email address, refer to Modify Email Account - macOS and OS X .

  1. Before getting started, have at hand the email password agreed upon with OlympusNet staff.

  2. Click on the Mail icon in the Dock, then select Mail and in the Mail dropdown menu, select Preferences, then Accounts. You’re now in a window titled Accounts. In the vertical window on the left, click the + symbol at the bottom of the window to create a new email account, i.e., a new email address.

  3. Select Other Mail Account… then click Continue.
    image of Account Types

  4. In the Add a Mail account window, enter your Email Address and Password, then click Sign In.
    image of mail servers

    Apple Mail doesn’t yet know the correct names of the mail servers so it will display in red the error Unable to verify account name or password in the new dialog box that opens.
    image Unable to Verify

  5. Choose between POP and IMAP for Account Type:. OlympusNet recommends POP for desktops and laptops and explains why at POP or IMAP? .

  6. Ignoring User Name: for the moment, enter in both the Incoming Mail Server: and Outgoing Mail Server: fields:

    1. for addresses
    2. for addresses
  7. Enter the email address into the User Name: field and click Sign In.
    image of mail servers

  8. Apple Mail will then verify that it can access your OlympusNet account and, if it can, will download all the mail in the mail server’s inbox to your Apple Mail desktop inbox. If Apple Mail cannot access your account, it will throw an error telling why. Usually the error is a misspelled password or mail server name.

  9. Skip to point 11 if you have only one OlympusNet email account.

    1. It’s helpful to disambiguate multiple email accounts by giving them separate names. In the Mail/Preferences/Accounts window titled Accounts, select the Account Information tab. Change the ‘Description: field to uniquely identify the account you just set up. For Jane Doe, we chose Jane POP.
  10. In the Accounts window in the left vertical panel, select the Olympus account.

  11. For POP accounts, note that the setting under the Account Information tab, Remove copy from server after retrieving a message: is set by default to After one week. For an explanation, see POP or IMAP? under POP Email Left on Server.
    image of Account Information tab

  12. In the Accounts window, select the Server Settings tab.

    1. For both the Incoming Mail Server (POP) and Outgoing Mail Server (SMTP), uncheck Automatically manage connection settings. Why? Because doing so uncovers the Port and Authentication settings.
    2. POP users, change the Port from 110 to 995 for Incoming Mail Server.
    3. IMAP users use Port 993 for Incoming Mail Server.
    4. Check the checkbox Use TLS/SSL for both Incoming and Outgoing Mail Servers.
    5. Confirm that Authentication: is set to Password for both Incoming and Outgoing Mail Servers.
    6. For both POP and IMAP, set the Outgoing Mail Server Port to 587.
      image of accounts-ServerSettings
  13. In the Outgoing Mail Server (SMTP) section, at the far right of the Account: window are two vertical arrows. Mouseover those arrows and select Edit SMTP Server List… and change the Description: field to Jane SMTP to disambiguate the Outgoing Server Name. Then click OK.
    image of accounts-server-smtp-account-name

  14. The best way to test that an email account is working is to send an email from that email address to that email address.