Email Settings for Authenticated SMTP


This document provides instructions for configuring email clients to use ITS's authenticated SMTP server ( This service is an alternative to using your regular mail account for correspondence with those whose university business needs are not met by the latter.

General Configuration Information

Use for the outgoing (SMTP) mail server and use SSL for authentication.

Apple's Mail Application

  1. From the Mail menu, select Preferences.

  2. Click the Accounts button.

  3. In the list of accounts on the left side of the window, select the account you want to modify, and the configuration information will appear to the right. If you prefer, you can click the + sign to create a new account.

  4. Under the Account Information tab, click the Server Settings button at the bottom of the window. Do not change your current Account Type setting. An old ITCS IMAP account is shown here; you may be using a different account.

    Screenshot of account settings

  5. In the dialog box that opens, enter these settings:

    In the Outgoing Mail Server box, type

    Type 587 for the Server port.

    Check the Use Secure Sockets Layer (SSL) checkbox.

    From the Authentication pop-up menu, select Password.

    In the User Name box, enter your uniqname.

    Click OK.

    Screenshot of SMTP settings

  6. Apple's Mail Application sometimes reverts to its old SMTP settings, so we recommend that you remove any old SMTP server entries. Click the pop-up menu for Outgoing Mail Server (SMTP).

    Screenshot of SMTP pop-up menu

  7. From this pop-up menu, select Edit Server List.

    Screenshot of selecting Edit Server List

  8. Select a server that you do not use, then click the Remove Server button. Continue until you have removed all the servers you don't use.

    Screenshot of removing server entries

  9. The only server in your list should be (your uniqname may appear next to the server name; that's okay). When you have only the server in the list, click the Done button.

    Screenshot of smtp.mail.umich as the only entry in the SMTP server list

  10. Close the Accounts window and, when prompted to do so, save your changes.


  1. From the File menu, select Add Account.
  2. Select Manual setup or additional server types and then click Next.
  3. Select Pop or IMAP and click Next.

  4. Choose these settings in the Add Account window:
    • Your Name: your name as you want it to appear when sending messages
    • Email Address: your University of Michigan email address
    • Account Type: IMAP
    • Incoming mail server:
    • Outgoing mail server (smtp):
    • User Name: your University of Michigan email address
    • Click More Settings.
  5. Click the Outgoing Server tab and choose these settings:
    • Check the My outgoing server (SMTP) requires authentication box.
    • Check the Log on using box.
    • The User Name is your uniqname.
  6. Click the Advanced tab and choose these settings:
    • Incoming server (IMAP) - Use the following type of encrypted connection: SSL
    • Outgoing server - Use the following type of encrypted connection: SSL
    • Outgoing server:  465
    • Click OK.
  7. Click Next in the Add Account box.

  8. Click Close when the tests complete.

  9. Click Finish.

Outlook Express v6

  1. From the Tools menu, select Accounts.

  2. In the Internet Accounts window, click the Mail tab.

  3. In the list of Accounts, click the name of the account you want to use so that it is highlighted, then click the Properties button. An old ITCS IMAP account is shown here; you may be using a different account.

  4. In the Properties window, click the Servers tab, and make these settings:

    In the Outgoing mail (SMTP) box, type

    Under Outgoing Mail Server, check the My server requires authentication checkbox.

    Screenshot of properties settings

  5. Click the Settings button (under Outgoing Mail Server).

  6. Make sure that under Logon Information, the Use same settings as my incoming mail server radio button is selected. Then click OK.

    Screenshot of Logon Information setting

  7. Click the Advanced tab, and make these settings:

    Under Outgoing mail (SMTP), check the This server requires a secure connection (SSL) checkbox.

    The Outgoing mail (SMTP) port number should be 465.

    Screenshot of Server Port settings

  8. Click the OK button.

  9. In the Internet Accounts window, click the Close button.


If you are unable to send mail after changing your settings, here are some things to try:

  1. Check your settings:

    • The SMTP/outgoing mail server should be

    • Authentication is required.

    • SSL must be used. (Note that TLS is a form of SSL. In some programs, we recommend that you select TLS.)

    • The port number for SMTP should be either 465 (used by most Microsoft mail programs) or 587 (used by most non-Microsoft mail programs).

  2. Try switching the port number. Sometimes this helps. If you entered 465, try 587 instead. If you entered 587, try 465.

  3. If you are running personal firewall software or anti-virus software other than the versions of VirusScan for Windows or Sophos Anti-Virus for Mac that ITS distributes, it is possible that your security software is blocking port 465 or 587. Try disabling that software, then testing again. If this is indeed the cause, set your security software so that it does not block those ports.

  4. If you are using an ISP other than U-M (for example, Comcast, APL, SBC, etc.), your ISP may be blocking access to ITS's SMTP server. In that case, you must use your ISP's recommended SMTP server settings. Check your ISP's website or contact your ISP for instructions and assistance.

Last Updated: 
Wednesday, May 3, 2017