Microsoft Outlook uses the semicolon as a separator between addresses. However, a natural way to type multiple addresses into the To, Cc, or Bcc fields is to use commas. If you are used to commas, you can customize Outlook to recognize commas as separators.
If you need to send a copy of the email to the recipient that should not be visible to other recipients, you can add her/his address to Bcc (blind carbon copy). Addresses in the Bcc field are not visible to the recipients in the To and Cc fields, and each other.
Outlook proposes easy and fast way to import contacts from the CSV file to your Outlook. It can be prepared in Excel or saved in another Outlook instance (see How to export Outlook Contacts to a CSV file).
You may want to save Outlook contacts for future use. For example, to move them to another PC, or add them to another email client. Fortunately, you can save all contacts to the file in CSV format.
Exchange Server users or Microsoft 365 Business subscribers can share a contact folder with another person inside and outside of the organization if sharing contact lists is supported by the organization's sharing policies. If you do not have an Exchange Server account or your organization policies do not allow contact folders sharing, Microsoft Outlook does not offer the Share Contacts option. However, you can share contact lists, email groups, or distribution lists by creating the contact group, attaching it to the email, sending the email, and importing.
If you regularly send emails to the group of people like your project team or your amateur soccer club, a one-time effort to create an email group for the distribution list pays off in the future many times. Microsoft Outlook offers a Contact Group to manage contact lists with a handful of personal contacts, email groups with dozens of team members, or distribution lists with thousands of subscribers.
A lot of people prefer to see the Calendar with busy times on the paper or share their availability schedule with others without sending Outlook calendars. Microsoft Outlook offers the way how to save as pdf file or print the calendar events in another useful form.
By default, Outlook uses the AutoComplete list to suggest email addresses. If the AutoComplete feature is not disabled in Outlook (see how to turn it off), the AutoComplete list is updated automatically after sending an email. From time to time, people make mistakes when entering addresses or receive incorrect addresses for use.
The AutoComplete feature generates an AutoComplete list, also known as the nickname cache. This list is generated automatically after sending email messages from Outlook: