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did you set them up with IMAP? Or are you trying to have them use MAPI?
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We have a few users using MacMail in our Exchange 2007 enviroment. &nbsp;They are able to receive email using the Exchange connection, however they cannot send email.<br />
<br />
If I take user account and set it as a Domain or Exchange admin, the user account can send email.<br />
<br />
Any idea on the permissions issue? &nbsp;I'm thinking its somewhere in the registry of my CAS server, but I can't find it.<br />
<br />
I called Microsoft, they didn't help me except for refunding my $259.00.
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We have a few users using MacMail in our Exchange 2007 enviroment.  They are able to receive email using the Exchange connection, however they cannot send email.

If I take user account and set it as a Domain or Exchange admin, the user account can send email.

Any idea on the permissions issue?  I'm thinking its somewhere in the registry of my CAS server, but I can't find it.

I called Microsoft, they didn't help me except for refunding my $259.00.

did you set them up with IMAP? Or are you trying to have them use MAPI?

MacMail using SMTP setup

We have a few users using MacMail in our Exchange 2007 enviroment.  They are able to receive email using the Exchange connection, however they cannot send email.

If I take user account and set it as a Domain or Exchange admin, the user account can send email.

Any idea on the permissions issue?  I&#39;m thinking its somewhere in the registry of my CAS server, but I can&#39;t find it.

I called Microsoft, they didn&#39;t help me except for refunding my $259.00.

Interactions between email servers and clients are governed by email protocols. The three most common email protocols are POP, IMAP and MAPI. Most email software operates under one of these (and many products support more than one).  The correct protocol must be selected, and correctly configured, if you want your email account to work.

Email Protocols

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.