When you click the Send button to send a message in business email, we automatically check the addresses of your intended recipients to make sure that each of them has been entered in a valid format. If we detect an unsupported character or a format that is prohibited by internet mail standards, you'll receive a Problem Found error on the Compose mail screen.

Common causes of this error include:

• The address is missing parts of the domain. For example, leaving out part of an address (such as the .com) will produce this error.
• The address contains illegal characters, including spaces and commas. Because email must be routed through various mail systems, certain characters cannot be included in an address. These include, spaces, commas, and colons, for example. In addition, addresses cannot include more than one at (@) symbol. If your correspondent has given you an illegal address with one of these characters, chances are that he also has a version of the address without them. Spaces aren't allowed as part of an address, but spaces can exist before or after an address.
• You're trying to post directly to a newsgroup. Currently, this is not possible in business email.

To send your message, you'll need to change the To, Cc, or Bcc fields so that all addresses contained in those fields are valid. If you're using nicknames or group names, make sure that the addresses in your address book are all properly formatted.