11.1 Internet Connection
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## 11.1 Internet Connection

Kerio MailServer can either be installed on a computer that has a permanent connection to the Internet (leased line, wireless connection, cable modem, xDSL, etc.) or on a computer with a dial-up connection (analog or ISDN modem). Using the built-in scheduler you can set when the mailserver will automatically dial out a connection and perform a mail exchange.

Figure 11.1. Internet Connection tab

Online

  Kerio MailServer is permanently connected to the Internet. Outgoing mail is sent immediately.

Offline

  The server is not permanently connected to the Internet. Outgoing mail is stored in a queue and is sent in time intervals set in the Scheduler.

  Check the Use RAS to connect to Internet option if you intend to let the line dial within the scheduled time intervals. Dial-up connection is available only on MS Windows. This option is not supported in Linux and Mac OS X systems. Dial-up entries created in Windows are offered in the Select RAS line menu. Kerio MailServer can use the username and the password which have been assigned to the appropriate dial-up connection by a user (the Use user and password specified in system option) or you can enter the username and password directly into this dialog (the Specify user and password option).

  ### Warning

  The dial-up connection must be created for all users within the system (this can be defined within definition of an appropriate connection).

### Note

- The Offline option can also be used when Use RAS to Connect to Internet is not checked. Kerio MailServer can run on a computer within a local network connected to the Internet by a dial-up line. In the Online mode frequent and uncontrollable requests for dial-out will be made. In the Offline mode Kerio MailServer will request a dial-out only in the time intervals set in the scheduler, which helps optimize connection costs.

- Kerio MailServer uses the system telephone connection phone list (`rasphone.pbk`). No other phone list can be used.

- The Online option does not switch off the scheduler. Although outgoing mail is sent immediately, the mailserver can retrieve messages from remote POP3 accounts in regular intervals. For details, see chapter 12.4 remote POP3 mailboxes.

- Details about setting the scheduler can be found in chapter 20 Scheduling.

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Chapter 11 Internet Connection | Contents | 11.2 Sending High Priority Messages