{{MessageBox|backgroundcolor =#faa|image =Warning.png|heading = Send WARNING|message = This is recommended only for advanced users, proceed with caution.}}This tutorial is now available as the Amahi [https://www.amahi.org/apps/postfix-mail through your HDA using your gmail account ===-relay Post Mail Relay] application.

WarningREF: Only try this if you know what you’re doing.<br><br>I took the information from [this page [http://carlton.orileyopentodo.net/blog2013/?p=31]] and modified them slightly for Fedora 14 03/ Amahi 6postfix-smtp-relay-to-smtp-gmail-com Postfix SMTP relay to SMTP gmail. <br><br>com]

* First of all, install postfix and remove sendmail: <br><pre>yum -y install postfix mailxyum -y remove sendmail</pre>

yum -y install * Add the following to the bottom of the file /etc/postfix/main.cf. You do not need to change anything else in it, as the last setting for any option is the one that is saved.<brpre>####Gmail SMTP Relay#TLS parameters yum -y remove sendmail<br>smtpd_use_tls=yessmtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scachesmtp_tls_session_cache_database = btree:${data_directory}/smtp_scacheOpenssl and openssl-perl are needed to generate certificates and create SSL connections to GMail<br>smtp_tls_note_starttls_offer = yesOpenssl should be installed already, but to be suresmtp_tls_policy_maps = hash: <br>/etc/postfix/tls_policy yum -y install openssl openssl-perl<br>#Relay host configurationA Certificate Authority is needed to create the necessary certificatesrelayhost = [smtp.gmail. You can skip the next paragraph if you already have onecom]:587 #SASL Configurationsmtp_sasl_auth_enable = yessmtp_sasl_password_maps = hash:/etc/postfix/sasl_passwdsmtp_sasl_security_options = noanonymoussmtp_sasl_mechanism_filter = plainsmtp_sasl_tls_security_options = noanonymous</pre><br/>

cd * Create /etc/pkipostfix/tlssasl_passwd file with your Gmail login credentials that looks like below:<pre>[smtp.gmail.com]:587 user@gmail.com:Password</miscpre><br/> .<b>NOTE:</CAb> Change ''user'' to your username and ''password'' to your gmail crredentials.pl –newca<br/>

*You will be prompted for Build the file name, hit enter to create a new CA.* You will need to enter a passphrase next, be sure to remember it.*Choose the Country Name, State or Province Name, Locality Name, Organization Name, and Organizational Unit Name to your liking. Be sure to remember the values, they will be needed in the key creation later. *For the Common Name, type “CA” (without quotes). *Take defaults for everything else and when prompted enter the passphrase from above.password database: <br>Now a key that is sent to GMail to start the SSL encryption will be created<pre>postmap hash: /etc/postfix/sasl_passwd<br/pre>

cd * Create /etc/pkipostfix/tls<br> mkdir gmail_relay<br> cd gmail_relay<br>tls_policy file that looks like below: openssl genrsa -out server.key 1024<brpre> openssl req -new -key server[smtp.key -out servergmail.csrcom]:587 encrypt<br/pre>You will be prompted for country etc. like when creating the CA. Enter the same values. <br/>As Common Name, now enter * Build the name of your server, FQDN or not, your choice. policy database: <br> openssl ca -out server.pem -infiles server.csr<brpre>You will need to enter your passphrase again at this point.postmap /etc/postfix/tls_policy<br/pre>When asked if you want to sign the key, answer yes, same when asked if to commit it.

Add * Protect the following to the bottom of the file files with your Gmail login data:<pre>chmod 600 /etc/postfix/sasl_passwdchmod 600 /etc/postfix/sasl_passwd.dbchmod 600 /etc/postfix/tls_policychmod 600 /etc/postfix/maintls_policy.cfdb</pre><!--chown postfix /etc/postfix/sasl_passwdchown postfix /etc/postfix/sasl_passwd. dbchown postfix /etc/postfix/tls_policyYou do not need to change anything else in it, as the last setting for any option is the one that is savedchown postfix /etc/postfix/tls_policy.db-->

#### GMail SSL SMTP Relay* Restart Postfix: relayhost = [smtp<pre>systemctl restart postfix.gmail.com]:587service</pre>

#auth* Set Postifx to start on boot: smtp_sasl_auth_enable=yes smtp_sasl_password_maps = hash:/etc/<pre>systemctl enable postfix.service</sasl_passwdpre>

#tls smtp_use_tls = yes smtp_sasl_security_options = noanonymous smtp_sasl_tls_security_options = noanonymous smtp_tls_note_starttls_offer = yes tls_random_source = dev* Now try sending a mail, it should reach your Gmail account:/dev/urandom smtp_tls_scert_verifydepth = 5 smtp_tls_key_file=/etc/pki/tls/gmail_relay/server<pre>echo test 1 2 | mail -s "Test mail" user@gmail.key smtp_tls_cert_file=/etc/pki/tls/gmail_relaycom</server.pem smtpd_tls_ask_ccert = yes smtpd_tls_req_ccert =no smtp_tls_enforce_peername = no<brpre>

gmail-smtp.l.google.com user@gmail.com<b>NOTE:password<br/b> smtp Some ISPs will block emails sent using this method.gmail Looking for a work around.com user@gmail.com:password<br>

Obviously== Troubleshooting ==* If you get the message " warning: SASL authentication failure: No worthy mechs found", you need to change ''user'' to your username and ''password'' to your gmail passwordinstall this package. <br> yum install cyrus-sasl{,-plain}

Create the password :Restart Postfix database: <br>systemctl restart postfix

postmap hash:/etc/postfix/sasl_passwd   Protect * Receive the files with your GMail login datafollowing message:  chmod 600 /etc/postfix/sasl_passwd chmod 600 /etc/postfix/sasl_passwd connect to smtp.gmail.dbcom[2607:f8b0:400e:c05::6d]:587: Network is unreachable chown postfix /etc/postfix/sasl_passwd chown postfix :To correct this problem, change /etc/postfix/sasl_passwdmain.db<br>cf as follows: inet_protocol = ipv4:Restart Postfixpostfix /etc/init.d/ systemctl reload postfix restart Now try sending a mail, it should reach your gmail account.

[[Amahi_Mail_-_The_Free_Way]], not working on F14, yet.<br>[[Forward_System_Emails|Forward System Emails]]<br>[[Enable_Outgoing_Mail]], not working on F14, yet.<br>[[Monitor_System_Logs_via_E-mail|Monitor System Logs via E-mail]]<br>