I have setup a Exchange server for my company to get all their mails from our ISP to our exchange mailboxes, which works fine, but I have three people who work at another branch which dial-up to retrieve their mails, which also works fine, but if I send a mail to one of the three people my exchange send me a message back to say that the people don't exist in my organisation, which I understand, because the poeple are not created in my Active Directory. What do I have to change so that the thing works again?
Thanks for the Help.
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