Adding Contacts in Hosted Exchange

From the Contacts tab, you can add two types of contacts by clicking the + New Contact button:

External Contact

This is a contact whose email address belongs to a domain outside your organization
(example: address@example.tld, aexempl@pur-mail.net).

This type of contact is useful for referencing people or partners outside your company.

Internal Contact

This is a contact associated with your own domain
(example: address@domain.tld, address2@domain.tld).

This may correspond to a mailbox or a resource within your organization that you want to make visible as a contact.

⚠️ Important: whether internal or external, a contact must first be created in the Contacts tab before it can be added to a distribution group. Without this prerequisite step, the contact will not appear in the selection list when configuring a group.

Example of Creating an External Contact (Hybrid Infrastructure)

The + New Contact form contains the following fields:

• First Name / Last Name — The contact’s identity, here Mat Brad.

• Display Name — The name that will appear in the address book and in emails, here Mat Brad.

• Mail Enabled — This toggle enables mail functionality for the contact, making it visible and usable as a recipient from Outlook or Webmail.

• Email — The target email address of the contact, here matbrad@domain.tld.
  Although the address belongs to the domain.tld domain, it does not belong to this Exchange environment but to another messaging system coexisting within a hybrid infrastructure.

• Email Alias — A short alias associated with the contact, here kbreda.

• Hide from Address List — Option allowing this contact to be hidden from the global address book if necessary.

💡 Hybrid Environment Context:
In a mixed infrastructure (for example, Exchange coexisting with another mail server), users from one environment are not automatically known by the other. It is therefore necessary to manually declare them as contacts so that Exchange users can send emails to them, find them in the address book, or include them in a distribution group.