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Setting Up Email on Mac OS X Mail (POP)

ID 536
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Note: If you are receiving a “Cannot send message using the server mail.optimum.net” error when sending mail, please click here for instructions on how to resolve the issue.

 

To set up email on Mac OS X Mail:

  1. Open Apple Mail.
  2. Click Mail then Preferences.
  3. Go to the Accounts tab and click the plus (+) button underneath the Accounts field to add a new account.
  4. Select POP3 in Account Type.
  5. Enter your Optimum Online e-mail address in the Email Address field.
  6. In the Full Name field, type your name how you'd like it to appear when people get e-mail from you (for example: John Smith).
  7. Enter your e-mail server name (see below for instructions) in the Incoming Mail Server field.
  8. Enter your Optimum ID in the User Name field. (Your Optimum ID is the part of your e-mail address to the left of the "@" sign, for example: jsmith.)
  9. Enter your password in the Password field.
  10. Enter your e-mail server name (see below for instructions) in the Outgoing Mail Server (SMTP) field.
  11. Click OK

 

Issues Sending Mail in Mac OS X Yosemite

There are some known issues with sending mail in Mac OS X Yosemite and Mail version 8.0.

First, make sure you are running the latest version of the Mail Client. Go to “Mail -> About” from the Mail app to find your version. To upgrade, select Software Update from the Apple menu. 

If you are still receiving the "Cannot send message…" error, follow these steps:

  1. On the error dialog, click Edit SMTP Server list.
  2. On the next screen, uncheck the box next to Automatically detect and maintain account settings.
  3. Check the box next to Allow insecure authentication.
  4. Click OK.

 

What is my e-mail server name?

POP3 (Incoming)
Server: mail.optimum.net
Port: 110
SMTP (Outgoing)
Server: mail.optimum.net
Port: 587
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