Currently we can't set different settings for different accounts. Also extending them for Calendar items would be Also, return back the Desktop Alert Settings button, so that we can customize Outlook Specific Senders, appointments and Events should be settable, independent of defaults or its parent.
Outlook for Office 365 Outlook 2019 Outlook 2016 Outlook 2013 Outlook 2010 Outlook 2007 A Desktop Alert is a notification that appears on your desktop when you receive a new email message, a meeting request, or a task request. By default, Desktop Alerts are turned on. The information displayed in a Desktop Alert varies depending on the item that you receive in your Inbox. • Email message Displays the name of the sender, the subject, and the first two lines of the message. A Desktop Alert doesn’t display the contents of an encrypted or digitally signed message.
To view the message, you must open it. • Meeting request Displays the sender, subject, date, time, and location of the meeting.
• Task request Displays the sender, subject, and start date of the assigned task. Note: To suppress or enable other notifications such as sounds, mouse pointer changes, or displaying an envelope icon in the taskbar, check or clear the respective check boxes for those functions. When Desktop Alerts don’t appear Desktop Alert notifications don’t appear during the initial synchronization of an email account or when you request a manual Send/Receive. Also, if you're using message rules and a new message is moved out of the default account Inbox, you might not receive a Desktop Alert notification.
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If several items arrive in your Inbox at the same time, you won't necessarily receive a Desktop Alert for each item. If you receive a large number of items within a particular period of time, Microsoft Outlook displays a single Desktop Alert to indicate that you received several new items.
This prevents your desktop from being crowded with alerts that could potentially interfere with your work and temporarily obscure a portion of your desktop. You can use Desktop Alerts to process your incoming items without opening your Inbox. When a Desktop Alert appears, you can perform several actions that normally require you to open the item. For example, you can set a flag on a message, delete a message, or mark it as read—all without opening your Inbox. If you are using a account or a POP3 e-mail account, a Desktop Alert is displayed only when a new item arrives in your default Inbox.
If you want to display a Desktop Alert when an item arrives in any other folder, or when you receive items that meet specific conditions, you must create a rule. You must also create a rule if you want to be notified when you receive a new item in an IMAP e-mail account. Note: To suppress other notifications such as playing sounds, changing the mouse pointer, or displaying an envelope icon in the notification area, clear the Play a sound, Briefly change the mouse cursor, or Show an envelope icon in the notification area check box, respectively. Turn off alerts from a Desktop Alert • When a Desktop Alert appears, click the down arrow on the alert. • On the Desktop Alert menu, click Disable New Mail Desktop Alert. Click to open the Desktop Alert menu. Click to turn off Desktop Alerts.
Notice also that you can do other things from the Desktop Alerts menu, such as open, flag, or delete the new message, mark the message as read, or open the Desktop Alert Settings dialog box, where you can specify how long the Desktop Alert should remain visible on the screen and how transparent it should be. See the next section for details. Turn on alerts • On the Tools menu, click Options. • On the Preferences tab, click E-mail Options, and then click Advanced E-mail Options. • Under When new items arrive in my Inbox, select the Display a New Mail Desktop Alert (default Inbox only) check box.