I support Microsoft Outlook and while it's a more robust Exchange client than Apple Mail, It's also missing a lot of features you get in Mail. If you visit the Microsoft forums, you'll find lots of issues with Outlook 2016.
Regardless, you will have similar issues with Outlook. It's the number of messages in the Inbox that is the problem. She needs to archive messages to subfolders to reduce the number of messages in the Inbox.
Outlook 2016 for Mac, the latest iteration of the email and calendaring app, is a worthwhile upgrade for existing users.
Exchange Basics
The Inbox syncs more frequently than any other and should be kept as clean as possible. (this is the number one cause of problems with sync). Do NOT make subfolders under the Inbox.
Any folder with more than a few thousand messages is going to take some time to fully come down when you first sync your account. Due to the design of Outlook's sync engine (and how exchange works), you will see the 512 newest messages in a folder at the initial start of sync then the rest of the folder's contents will be back filled before you see any mail that arrives after this point.
Outlook checks the server for updates every minute, any folder that has updates will subsequently be synced. Since Outlook has a limit on how many folders can be synced at a time, there can be a queue of folders waiting. The Inbox does get high priority so it will generally sync before other folders that also need to sync.
Exchange likes folders to not exceed 2GB.
Anyone having experience with the new Outlook for Mac, especially connected to an Exchange server.
How do you organize and sync your calendar and contacts with your iPhone.
Add the Exchange account to your iPhone and check sync to contacts and calendars.
Outlook only syncs to Exchange contacts and calendars. Outlook does not sync iCloud, Google or other CalDAV and CardDAV services.
Sync Basics
CalDAV & CardDAV are protocols used by Apple, Google, Yahoo and others to sync contacts and calendars. Neither Entourage 2008 nor Outlook 2011 & 2016 support CalDAV or CardDAV.
Add your email account
If you don't have an email account set up, Mail prompts you to add your email account.
To add another account, choose Mail > Add Account from the menu bar in Mail. Or choose Apple menu > System Preferences, click Internet Accounts, then click the type of account to add.
- When adding an account, if you get a message that your account provider requires completing authentication in Safari, click Open Safari and follow the sign-in instructions in the Safari window.
- If necessary, Mail might ask you for additional settings.
Learn more about how to add or remove email accounts.
Send and reply
Learn how to compose, reply to, and forward email.
Send new messages
- Click New Message in the Mail toolbar, or choose File > New Message.
- Enter a name, email address, or group name in the 'To' field. Mail gives suggestions based on your contacts and messages on your Mac and devices signed into iCloud.1
- Enter a subject for your message.
- Write your email in the body of the message.
- To add an attachment, drag an attachment to the body of the message. Or choose File > Attach Files, choose an attachment, then click Choose.
- To change your font and format, use the options at the top of the message window.
- Beginning with macOS Mojave, it's even easier to add emoji to your messages. Just click the Emoji & Symbols button in the toolbar at the top of the message window, then choose emoji or other symbols from the character viewer.
- Send or save your message:
- To send, click the Send button or choose Message > Send.
- To save your message as a draft for later, close the message, then click Save.
Reply and forward
- To reply to a single person, click Reply , type your response, then click Send .
- To reply to everyone on a group email, click Reply All , type your response, then click Send .
- To forward a message to other people, click Forward , type your response, then click Send .
Organize and search
Sort your emails into folders and use multiple search options to find specific messages.
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Create folders
You can create Mailboxes to organize your emails into folders.
- Open Mail, then choose Mailbox > New Mailbox from the menu bar.
- In the dialog that appears, choose the location for the Mailbox.
- Choose your email service (like iCloud) to access your Mailbox on your other devices, such as an iPhone signed into the same email account.
- Choose On My Mac to access your Mailbox only on your Mac.
- Name the mailbox and click OK.
If you don't see the mailboxes sidebar, choose View > Show Mailbox List. To show or hide mailboxes from an email account, move your pointer over a section in the sidebar and click Show or Hide.
Sort your emails
To move a message from your Inbox to a mailbox:
- Drag the message onto a mailbox in the sidebar.
- In macOS Mojave, you can select the message, then click Move in the Mail toolbar to file the message into the suggested mailbox. Mail makes mailbox suggestions based on where you've filed similar messages in the past, so suggestions get better the more you file your messages.
To delete a message, select a message, then press the Delete key.
To automatically move messages to specific mailboxes, use rules.
Search
Use the Search field in the Mail window to search by sender, subject, attachments, and more. To narrow your search, choose an option from the menu that appears as you type.
Add and mark up attachments
Attach documents and files to your messages and use Markup to annotate, add your signature, and more.
Attach a file
To attach a file to your message:
- Drag an attachment to the body of the message.
- Choose File > Attach Files, choose an attachment, then click Choose.
Use Markup with your attachments
You can use Markup to draw and type directly on an attachment, like an image or PDF document.2
- Click the Attach button or choose File > Attach Files in the message window.
- Choose an attachment, then click Choose File.
- Click the menu icon that appears in the upper-right corner of the attachment, then choose Markup.
- Use the Sketch tool to create freehand drawings.
- Use the Shapes tool to add shapes like rectangles, ovals, lines, and arrows.
- Use the Zoom tool in the Shapes menu to magnify and call attention to a part of an attachment.
- Use the Text tool to add text.
- Use the Sign tool to add your signature.
- Click Done.
Learn more
- Contact Apple Support.
1. All devices signed into iCloud with the same Apple ID share contacts. Contacts addressed in previous messages that were sent and received on those devices are also included. To control this feature, turn Contacts on or off for iCloud. On Mac, choose Apple menu > System Preferences, then click iCloud. On iOS devices, go to Settings, tap your name at the top of the screen, then tap iCloud.
2. Markup is available in OS X Yosemite and later.