Apple Mail

Apple Mail (also known as is an e-mail client for Apple's OS X operating system.

GusMail users

Please see our Google Mail web page for instructions on setting up GusMail on Apple Mail.

Setting up Mail On iPhone

Please see the Google Mail web page.

Sending attachments

Windows computers may not receive your attachments correctly. To ensure everybody receives your e-mail attachments, you need to follow these steps.

  1. Open up Apple Mail
  2. From your menu bar, select Edit > Attachments.
  3. Ensure that "Always send Windows friendly attachments" is selected.


Apple uses the term Rules for filtering your mail.


To manage your signatures, you need to bring up the signatures management dialog:

  1. When you are in Mac Mail, click on Mail > Preferences.
  2. Click on Signatures on the Preferences toolbar.


  1. To create a new signature, click the (+) in the signatures management dialog.
  2. In order to access your new signature from the drop-down menu when creating a new message, click on the new signature and drag it to any accounts you want to be able to use it. In most cases, you will click and drag it to IMAP account.


  1. To edit an existing signature, select the signature you want to edit and change the text in the box to the right of it.
  2. To edit the name of the signature, double-click Signature #1, etc, and rename it.

Subscribing to folders

All folders should be subscribed to automatically. If necessary, close and open it up again.

Configuring Directory Services (LDAP)

OS X Yosemite

  1. Launch the Contacts app
  2. Go to the Contacts menu, and then click Add Account
  3. Choose Other contacts account...
  4. Choose LDAP in the drop down menu.

Known Problems

Deleted messages reappear

There is a known issue with the way Mac Mail handles IMAP accounts. Whenever there is any type of mail server troubles or hiccups, messages come back to your Inbox. There is nothing we/you can do to prevent this. Your only option would be to switch e-mail clients, such as Mozilla Thunderbird.

Attachments don't show up properly

Sometimes if attachment don't show up properly in Mac Mail, but they show up fine on a different Mac Mail installed on a home computer, try rebuilding the inbox by going to the mailbox menu and then click rebuild.