Modify Email Settings in Existing Account - OS X 10.10-10.11.x

by Ned Schumann last modified Oct 11, 2016 01:21 PM
  1. The purpose of this page is to describe how an already existing email account may be modified to work with OlympusNet email servers. The screenshots in this document do not show specific settings; your own settings will appear in your application for the same views. If nothing is broken - don't make any changes. If your password has been updated, the document will show where to enter the new password.
  2. If, after updating your settings, your email fails to send or receive, see the 15 minute video Troubleshoot Email Settings Video Walkthrough - OS X.
  3. While updating email settings, OS X may pop up a window about an Identity error if you are using as the server name. You'll need to accept the Identity certificate which is described in OS X - Trust Certificate entering the Macintosh administrative password (not the email account password) to finalize the certficate trust. You may not have set a Macintosh account password, and if so, select OK to accept the certificate.
  4. Open the the Mail application and click on the word Mail to the right of the Apple in the upper left corner of the screen. Then select Preferences.
  5. To modify/edit an existing account, click the account in the Accounts list to highlight it, then  modify your email settings on the Account Information tab to the right. The Incoming Mail Server cannot be changed after original setup.  *Note: your own information will already be in the fields from the setup. If your ISP has changed your password, you would type in the new one in the Password field shown in the screenshot below.
  6. After updating any settings in the Account Information, click the General Icon at the top of the Accounts window to get the Save Changes prompt and click Save. Click back onto the Accounts tab when done.
    a. Click on the General icon
    b. Click Save to save changes
    c. Click back on the Accounts tab to resume settings updates
  7. Options available under Mailbox Behaviors:
  8. Options available under Advanced:
  9. To modify your Outgoing Mail Server settings, click the Outgoing Mail Server (SMTP) drop-down menu at the bottom right (shown in Step 5's screenshot above). Select Edit SMTP Server List from the pop up.
  10. Click on the account you wish to modify in the top of the window, under Description, Server Name, In Use By Account.  In the screenshot below, janedoe out is highlighted by clicking on it. With the Account Information button selected in the middle of the window, for Description it is helpful to give a descriptive name to the account to identify which email address it is, with the simple word "out". This is only a nickname to describe that it is the outgoing server settings for the janedoe account.
  11. For the Server Name: if you were able to successfully get through the Certificate Trust settings indicated at the top of this document you do not need to change the Server Name. If you did not have the Mac ID password and could not complete the Certificate Trust, you may need to change the Outgoing Server name.  If the server name must be changed:
    a. For email (
    • Enter in the Server Name field if certificate trust failed; otherwise leave it on
    b. For email in your own domain (
    • Enter in the Server Name field, if the certificate trust failed; otherwise, leave it on
    • Do not click ok yet. Click on the Advanced button in the middle of the dialog box.
      The screenshot shows the change might make, and shows how the account that is highlighted should match what is shown into the lower half of the dialog box: do not copy the data in the screenshot into your own settings.
  12. On the Advanced button of the dialog box, be sure the check box is checked for Automatically detect and maintain account settings. Use SSL should be checkmarked. In the field beside Authentication, Password should be in the field.  If it is anything other than Password, click on the field and select Password from the options.

    The full email address must be entered for User Name, and the password for that email address.
    Click OK when done.
  13. Note that when you exit from Apple Mail and return, the authentication MAY revert to MD5-Challenge Response. That is acceptable, as the Automatically detect and maintain account settings will change the authentication as needed.
  14. Back to Account Information after clicking OK to close the outgoing server settings, be sure you see the Description name you gave the account (janedoe out, or out) in the field beside Outgoing Mail Server (SMTP) at the bottom of the dialog box matching the account you have highlighted in the left margin.  If it says None, click on the word None and select instead the description name you gave the server (janedoe out, or out).

    The following screenshot shows that with the account highlighted in the margin on the left, the matching name you set in the Description field for the Outgoing Server description, should show to the right of the Outgoing Mail Server (SMTP). If it shows None, click on the word none and select the appropriate name you used to describe your outgoing server. This screenshot is an example of Do not copy the entries in the screenshot into your own email settings.
  15. If you need to change the entry to the right of Outgoing Mail Server (SMTP), be sure to click the General Icon at the top of the screen to get the Save Changes prompt and click Save.
  16. Now test whether the setup works by sending email to yourself. Click on Mail and select Quit Mail, then reopen Mail from the dock and send email to yourself once more to be sure it's working.

    To set up Yosemite mail for the first time, see Setup New Email Account - OS X 10.0 Yosemite