pem
TLS_TRUSTCERTS=/etc/ssl/certs/ca-certificates.pem
CAUTION
686
Running Servers Part V
8. Tell Exim where it can find the private key and certificate, and enable TLS. Create a file
named /etc/exim4/conf.d/main/12_exim4-config_local_tlsoptions
containing the following:
MAIN_TLS_CERTIFICATE = CONFDIR/mail.crt
MAIN_TLS_PRIVATEKEY = CONFDIR/mail.key
MAIN_TLS_ENABLE = 1
9. Restart Exim:
# invoke-rc.d exim4 restart
Your server should now support SSL/TLS when communicating with SMTP, POP, and IMAP clients.
Summary
Using Linux and a good Internet connection, you can set up and maintain your own mail server.
Preparing your computer to become a mail server includes configuring your network connection,
setting up delivery and retrieval methods, and adding required software packages.
This chapter describes how to install, configure, and troubleshoot the Exim MTA. Exim can be
used in tandem with spam filtering software (such as SpamAssassin) and virus scanning software
(such as ClamAV). Methods for securing your mail server include configuring support for SSL/TLS
encryption.
687
Running a Mail Server 25
Sharing printers is a good way to save money and make your printing
more efficient. Very few people need to print all the time, but when
they do want to print something, they usually need it quickly.
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