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Apple Mail (IMAP4)

How to use IMAP4 for Apple Mail

This is a sample setting by using Mail.app 11.1 on macOS High Sierra (10.3).

Mail sending and receiving setting

  • If you have already used [Mail.app] and set other account, read this manual from step 1.
  • If this is first time to use [Mail.app], read this manual from step 2.
  1. Open [Preferences] from [Mail] in the menu bar.


  2. Select [Other Mail Account…] and click [Continue].


  3. If you open [Mail.app] for the first time, you will start from the following page.
    Name Your Name
    Email Address SFC-CNS Mail Address
    Password IMAP/SMTP-AUTH password


  4. Type your information.
    Email Address SFC-CNS Mail Address
    User Name SFC-CNS Login Name
    Password IMAP/SMTP-AUTH password
    Account Type IMAP
    Incoming Mail Server imap.sfc.keio.ac.jp
    Outgoing Mail Server smtp.sfc.keio.ac.jp


  5. Check "Mail".


  6. When you finish the above settings, it will start to connect IMAP server.
    If it doesn’t start to connect, click [Take All Accounts Online] from [Mailbox] in the menu bar.


  7. When you finish the above settings.

How to confirm port number for SMTP server.

Check that use the submission port number from the standard outgoing port to send email off-campus.

  1. Open [Preferences] from [Mail] in the menu bar.
  2. Click [Edit SMTP Server List…] from [Outgoing Mail Server (SMTP)]
  3. Confirm [Use default port] is checked.

Method of reading IMAP4 mail offline.

Related: About IMAP4(WebMail) Service

Last-Modified: January 23, 2018

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