Out of Office responses to incoming email are an incredibly useful thing to have with any mail server. In Microsoft Exchange, these are sent by the server on behalf of each user when the user has enabled them. Out of Office messages can be configured using the Exchange web portal or using a standard mail client, which has up until now, usually be Outlook. In Lion, Apple has built in an Out of Office setting in Mail.app. To configure an Out of Office message using Mail in Mac OS X 10.7, first configure the Mail client to communicate with the Exchange server. Then open Mail.app from /Applications. Right-click on the name of the account (or Inbox if you only use one account) and select Get Info from the contextual menu. Click on the Out Of Office tab and check Send Out of Office Replies to enable the Out of Office message. A different message can be sent to users in your domain than to users outside of your domain; enter the Out of Office Response for users of each. Out of Office replies will then be sent by the server on behalf of the user account.
In Exchange 2007, the Client Access Server (CAS) role accepts connections from clients in order to allow them access to the Exchange Server infrastructure (mailboxes, public folders, GAL, etc). CAS accepts connections from:
- POP3 and/or IMAP4 clients
- Outlook Web Access (OWA) and/or OWA Light clients
- Exchange ActiveSync (EAS) clients
Incoming and outgoing mail are handled a bit differently from one another in Mail.app. This is helpful as you can have multiple outgoing accounts even if you only have one incoming accounts, useful if you move between a lot of different networks. To setup a new SMTP account, open the Accounts pane of the Mail.app preferences and choose Edit Server List… from the Outgoing Mail Server (SMTP): field. At the Server List screen click on the “+” icon and enter a description for the account. This can be anything to help the end user remember what this account is meant for. Then type in the name or IP address of the server in the Server Name: field. You can click on the Advanced tab here to customize the port, enable SSL or set the authentication type/parameters. Once you are satisfied with your settings, click on the OK button or click on the “+” sign to create another outgoing mail account. Having multiple SMTP accounts can be confusing though. To remove an existing SMTP account, open the Accounts pane of the Mail.app preferences and choose Edit Server List… from the Outgoing Mail Server (SMTP): field. At the Server List screen click on the “-” icon while highlighting the account you would like to remove.