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- #CANARY MAIL DOVECOT IMAP SERVER HOW TO#
- #CANARY MAIL DOVECOT IMAP SERVER INSTALL#
- #CANARY MAIL DOVECOT IMAP SERVER UPDATE#
Then tell the server who you are sending mail to, replacing with your own username and domain name: rcpt to: Start by telling the server who the mail is being sent from: mail from: The server will respond with: ~]$ telnet localhost 25
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Once Telnet is installed, use it to connect to the server’s SMTP port: telnet localhost 25
#CANARY MAIL DOVECOT IMAP SERVER INSTALL#
To test Postfix we will telnet to the server and perform a basic “handshake protocol,” just as an email program would.įirst, install Telnet: sudo yum install telnet Save and exit the file, then restart Postfix to load the new configurations: sudo systemctl restart postfix Test Postfix With Telnet Smtpd_tls_session_cache_database = btree:$/smtp_scache Smtpd_tls_cert_file = /etc/postfix/ssl/mailserver.crt #mydestination = $myhostname, localhost.$mydomain, localhostįinally, add the following lines to the end of the file: smtpd_tls_key_file = /etc/postfix/ssl/mailserver.key Edit this file: sudo nano /etc/postfix/main.cfĮdit the line which reads: #myhostname = ĭelete the hash mark ( #) to un-comment the line, and replace with the hostname of the server: myhostname = ĭelete the hash mark ( #) to un-comment the line, and replace domain.tld with the domain you want to receive mail for: mydomain = ĭelete the hash mark ( #) to un-comment the following lines: #myorigin = $myhostname The /etc/postfix/main.cf file contains the configuration options for your Postfix installation. # -o milter_macro_daemon_name=ORIGINATING # -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject
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#CANARY MAIL DOVECOT IMAP SERVER UPDATE#
For more information on these configurations, consult the official documentation.īefore you begin the configuration changes, be sure that you have the most recent version of Postfix by running the command: sudo yum update postfix Edit master.cfįirst we will edit the /etc/postfix/master.cf file to enable the submission daemon to send and accept mail securely: sudo nano /etc/postfix/master.cfĭelete the hash mark ( #) to un-comment the following lines: #submission inet n - n - smtpd The following steps will enable a basic Postfix set-up, allowing you to send and receive mail. Sudo mv mailserver.crt /etc/postfix/ssl Configure Postfix Then move the files into this folder: sudo mv mailserver.key /etc/postfix/ssl This command will create two files: mailserver.key and mailserver.crt.Īlso Read: What Is HTTPS, and Why Should I Care?Ĭreate a folder for the SSL certificate files: sudo mkdir /etc/postfix/ssl We will create a self-signed SSL certificate to secure incoming and outgoing email connections: sudo openssl req -x509 -nodes -newkey rsa:2048 -keyout mailserver.key -out mailserver.crt -nodes -days 365Īnswer the questions at the prompts, or just hit to leave an answer blank. If you have a firewall, you will need to allow access to the following ports:Īlso Read: 30+ Commands to understand Firewalld Create an SSL Certificate
#CANARY MAIL DOVECOT IMAP SERVER HOW TO#
Postfix/postfix-script: the Postfix mail system is running: PID: 1681Īlso Read: How to get started with Firewalld Firewall Access If Postfix is installed and running, you will see the output: ~]# sudo postfix status To check the status of Postfix on the server, use the command: sudo postfix status