Time to time, when you send an email, you need to keep the text of the previous messages intact. E.g., if you use AutoCorrect in Outlook to check errors before sending any message, but you need to keep original text without any changes.

It is polite to reply to every received message, even if you don't have a time to process the message. To create a rule to reply for messages, see How to auto respond for some messages.
Sometimes you can't create a rule for some incoming messages because of unusual subjects, etc. So, you need to answer very quickly and work with messages later.

Usually, when you execute a wrong operation in Microsoft Office, you can use Undo to cancel the previous operation and revert some of the earlier actions. Unfortunately, some activities cannot be reverted simply. This tip is about how to restore a Calendar event that was deleted by mistake.

When you work with colleagues in a different time zone, from time to time you need to create a meeting in their time zone. Manual time conversion takes some time and you still feel that you made an error. Instead, you can select the correct time zone when you create a meeting, you don't need to know the difference between time zones!

Today more and more meetings are performed online in Internet for participants from different cities, countries and time zones. When you create a meeting in Outlook, you need to assign a correct time for different time zones.

Outlook users receive a lot of different information and email. Somebody may want to save important information to pdf file, such as all messages regarding one subject, project, etc.
It is easy to print selected emails to one pdf file for future use.

When you send pictures as attachments in Outlook, you can have some issues with size of your email. Some mail servers have strict limits for incoming and outgoing messages.
The best way to send pictures or any other large files is to share them on external resource such as DropBox, or Google Drive, and send a link, but even in Outlook you can try to reduce the size of the picture attachment.

Time to time, when you send an email, you need to be sure that this email has been delivered to the recipient. In Outlook, you can ask for two different receipts: a delivery receipt and a read receipt.

By default, hyperlinks are opened by clicking with pressing or holding Ctrl, but you can turn off this function.

You can create and use more than one calendar in Outlook. Also, you can open a Calendar shared by other person or even several people (see How to open received calendar), or you can use several Calendars of your own (see How to create a new Calendar in Outlook).