3 ## 20.9 Using Mail with a Dialup Connection
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5 If you have a static IP address, you should not need to adjust anything from the defaults. Set your host name to your assigned Internet name and **sendmail** will do the rest.
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7 If you have a dynamically assigned IP number and use a dialup PPP connection to the Internet, you will probably have a mailbox on your ISPs mail server. Let's assume your ISP's domain is `example.net`, and that your user name is `user`, you have called your machine `bsd.home`, and your ISP has told you that you may use `relay.example.net` as a mail relay.
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9 In order to retrieve mail from your mailbox, you must install a retrieval agent. The **fetchmail** utility is a good choice as it supports many different protocols. This program is available as a package or from the ports collection ([`mail/fetchmail`](http://pkgsrc.se/mail/fetchmail)). Usually, your ISP will provide POP. If you are using user PPP, you can automatically fetch your mail when an Internet connection is established with the following entry in `/etc/ppp/ppp.linkup`:
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13 !bg su user -c fetchmail
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16 If you are using **sendmail** (as shown below) to deliver mail to non-local accounts, you probably want to have **sendmail** process your mailqueue as soon as your Internet connection is established. To do this, put this command after the `fetchmail` command in `/etc/ppp/ppp.linkup`:
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19 !bg su user -c "sendmail -q"
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22 Assume that you have an account for `user` on `bsd.home`. In the home directory of `user` on `bsd.home`, create a `.fetchmailrc` file:
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25 poll example.net protocol pop3 fetchall pass MySecret
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28 This file should not be readable by anyone except `user` as it contains the password `MySecret`.
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30 In order to send mail with the correct `from:` header, you must tell **sendmail** to use `user@example.net` rather than `user@bsd.home`. You may also wish to tell **sendmail** to send all mail via `relay.example.net`, allowing quicker mail transmission.
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32 The following `.mc` file should suffice:
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35 VERSIONID(`bsd.home.mc version 1.0')
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42 MASQUERADE_AS(`example.net')dnl
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43 FEATURE(allmasquerade)dnl
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44 FEATURE(masquerade_envelope)dnl
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45 FEATURE(nocanonify)dnl
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47 define(`SMART_HOST', `relay.example.net')
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49 define(`confDOMAIN_NAME',`bsd.home')dnl
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50 define(`confDELIVERY_MODE',`deferred')dnl
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53 Refer to the previous section for details of how to turn this `.mc` file into a `sendmail.cf` file. Also, do not forget to restart **sendmail** after updating `sendmail.cf`.
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58 CategoryHandbook-email
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