This rule will be useful if you receive a lot of messages (for example, reports) from your colleagues and use rules to copy or move correspondence to the specific folders (like Rule to copy all correspondence about some subject to the specific folder or Rule to move all correspondence about some subject to the specific folder). Unfortunately those rules wouldn't work for messages with empty subject, but you still can create a rule to send an Auto-Reply if the message don't have a subject.
Usually Outlook users are using folders to organize messages, but you can also use colors. For example, you might apply a special color to all messages from a particular person. You can then see at a glance which messages are from that person.
By default, Outlook displays only a small subset of the available fields for messages. You can add columns for other fields, such as CC or Sensitivity, to show additional information.
Sharing Contact Groups can be a great timesaver when multiple people need to continuously e-mail the same groups of individuals (for more details see Sharing Contact Groups). You can easily import a Contact Group that was e-mailed to you as an attachment.
You can easily share your Contact Groups by attaching them to e-mail. There are several ways of attaching Contact Groups.
If you regularly send e-mails to the group of people, you can create a Contact Group and send them an e-mail with just a few clicks.
Outlook proposes next shortcut keys for easy and quickly work with e-mails: