Difference between revisions of "Outgoing mail via gmail"

Latest revision as of 15:36, 17 June 2020

	WARNING
	This is recommended only for advanced users, proceed with caution.

This tutorial is now available as the Amahi Post Mail Relay application.

This can be used to send mails from your Amahi 7 or greater (Fedora 19 or greater) HDA and to receive system emails. To receive emails meant for the root user, you have to Forward System Emails after finishing this tutorial. You also might want to take a look at Masquerade email address as well.

REF: Postfix SMTP relay to SMTP gmail.com

First of all, install postfix and remove sendmail:

yum -y install postfix mailx
yum -y remove sendmail

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.

####Gmail SMTP Relay
#TLS parameters
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtp_tls_note_starttls_offer = yes
smtp_tls_policy_maps = hash:/etc/postfix/tls_policy
 
#Relay host configuration
relayhost = [smtp.gmail.com]:587
 
#SASL Configuration
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_security_options = noanonymous
smtp_sasl_mechanism_filter = plain
smtp_sasl_tls_security_options = noanonymous

Create /etc/postfix/sasl_passwd file with your Gmail login credentials that looks like below:

[smtp.gmail.com]:587 user@gmail.com:Password

NOTE: Change user to your username and password to your gmail crredentials.

Build the password database:

postmap hash:/etc/postfix/sasl_passwd

Create /etc/postfix/tls_policy file that looks like below:

[smtp.gmail.com]:587 encrypt

Build the policy database:

postmap /etc/postfix/tls_policy

Protect the files with your Gmail login data:

chmod 600 /etc/postfix/sasl_passwd
chmod 600 /etc/postfix/sasl_passwd.db
chmod 600 /etc/postfix/tls_policy
chmod 600 /etc/postfix/tls_policy.db

Restart Postfix:

systemctl restart postfix.service

Set Postifx to start on boot:

systemctl enable postfix.service

Now try sending a mail, it should reach your Gmail account:

echo test 1 2 | mail -s "Test mail" user@gmail.com

NOTE: Some ISPs will block emails sent using this method. Looking for a work around.

Troubleshooting

If you get the message " warning: SASL authentication failure: No worthy mechs found", install this package.

yum install cyrus-sasl{,-plain}

Restart Postfix

systemctl restart postfix

Receive the following message:

connect to smtp.gmail.com[2607:f8b0:400e:c05::6d]:587: Network is unreachable

To correct this problem, change /etc/postfix/main.cf as follows:

inet_protocol = ipv4

Restart postfix

systemctl reload postfix

@@ Line 1: / Line 1: @@
-tags: mail gmail f14 postfix relay
 {{MessageBox|
-backgroundcolor	= red|
+backgroundcolor	= #faa|
 image	=Warning.png|
 heading	=WARNING|
 message = This is recommended only for advanced users, proceed with caution.}}
-This can be used to send mails from your HDA and to receive system emails.<br>
+This tutorial is now available as the Amahi [https://www.amahi.org/apps/postfix-mail-relay Post Mail Relay] application.
-To receive emails meant for the root user, you have to [[Forward_System_Emails|Forward System Emails]] after finishing this.<br>
-I took the information from [http://carlton.oriley.net/blog/?p=31 this page] and modified them slightly for Fedora 14 / Amahi 6. <br><br>
+This can be used to send mails from your Amahi 7 or greater (Fedora 19 or greater) HDA and to receive system emails.  To receive emails meant for the root user, you have to [[Forward_System_Emails|Forward System Emails]] after finishing this tutorial.  You also might want to take a look at [[Masquerade_email_address|Masquerade email address]] as well.<br>
-First of all, install postfix and remove sendmail: <br>
-{{Code|yum -y install postfix
+REF:  [http://opentodo.net/2013/03/postfix-smtp-relay-to-smtp-gmail-com Postfix SMTP relay to SMTP gmail.com]
-yum -y remove sendmail}}
-Openssl and openssl-perl are needed to generate certificates and create SSL connections to GMail<br>
+* First of all, install postfix and remove sendmail: <br>
-Openssl should be installed already, but to be sure: <br>
+<pre>yum -y install postfix mailx
-{{Code|yum -y install openssl openssl-perl}}
+yum -y remove sendmail</pre>
-A Certificate Authority is needed to create the necessary certificates. You can skip the next paragraph if you already have one:<br>
-{{Code|cd /etc/pki/tls/misc
-./CA –newca}}
-*You will be prompted for 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.<br>
-Now a key that is sent to Gmail to start the SSL encryption will be created: <br>
-{{Code|cd /etc/pki/tls
-mkdir gmail_relay
-cd gmail_relay
-openssl genrsa -out server.key 1024
-openssl req -new -key server.key -out server.csr}}
-You will be prompted for country etc. like when creating the CA. Enter the same values. <br>
-As Common Name, now enter the name of your server, FQDN or not, your choice. <br>
-{{Code|openssl ca -out server.pem -infiles server.csr}}
-You will need to enter your passphrase again at this point.<br>
-When asked if you want to sign the key, answer  yes, same when asked if to commit it.
-Add the following to the bottom of the file /etc/postfix/main.cf.
+* 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.
-You do not need to change anything else in it, as the last setting for any option is the one that is saved.
+<pre>####Gmail SMTP Relay
-{{Text|Text=<nowiki>####</nowiki> Gmail SSL SMTP Relay
+#TLS parameters
+smtpd_use_tls=yes
+smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
+smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
+smtp_tls_note_starttls_offer = yes
+smtp_tls_policy_maps = hash:/etc/postfix/tls_policy
+#Relay host configuration
 relayhost = [smtp.gmail.com]:587
-<nowiki>#</nowiki>auth
+#SASL Configuration
 smtp_sasl_auth_enable = yes
 smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
+smtp_sasl_security_options = noanonymous
+smtp_sasl_mechanism_filter = plain
+smtp_sasl_tls_security_options = noanonymous</pre><br />
-<nowiki>#</nowiki>tls
+* Create /etc/postfix/sasl_passwd file with your Gmail login credentials that looks like below:
-smtp_use_tls = yes
+<pre>[smtp.gmail.com]:587 user@gmail.com:Password</pre>
-smtp_sasl_security_options = noanonymous
+<br />
-smtp_sasl_tls_security_options = noanonymous
+<b>NOTE:</b> Change ''user'' to your username and ''password'' to your gmail crredentials. <br />
-smtp_tls_note_starttls_offer = yes
-tls_random_source = dev:/dev/urandom
+* Build the password  database: <br>
-smtp_tls_scert_verifydepth = 5
+<pre>postmap hash:/etc/postfix/sasl_passwd</pre>
-smtp_tls_key_file = /etc/pki/tls/gmail_relay/server.key
-smtp_tls_cert_file = /etc/pki/tls/gmail_relay/server.pem
-smtpd_tls_ask_ccert = yes
-smtpd_tls_req_ccert = no
-smtp_tls_enforce_peername = no}}
-Create /etc/postfix/sasl_passwd file with your Gmail login credentials that looks like below:
-{{Text|Text=gmail-smtp.l.google.com user@gmail.com:password
-smtp.gmail.com user@gmail.com:password}}
-Obviously, you need to change ''user'' to your username and ''password'' to your gmail password. <br>
+* Create /etc/postfix/tls_policy file that looks like below:
-Create the password  database: <br>
+<pre>[smtp.gmail.com]:587 encrypt</pre>
-{{Code|postmap hash:/etc/postfix/sasl_passwd}}
+<br />
+* Build the policy database: <br>
+<pre>postmap /etc/postfix/tls_policy</pre>
-Protect the files with your Gmail login data:
+* Protect the files with your Gmail login data:
-{{Code|chmod 600 /etc/postfix/sasl_passwd
+<pre>chmod 600 /etc/postfix/sasl_passwd
 chmod 600 /etc/postfix/sasl_passwd.db
+chmod 600 /etc/postfix/tls_policy
+chmod 600 /etc/postfix/tls_policy.db</pre><!--
 chown postfix /etc/postfix/sasl_passwd
-chown postfix /etc/postfix/sasl_passwd.db}}
+chown postfix /etc/postfix/sasl_passwd.db
+chown postfix /etc/postfix/tls_policy
+chown postfix /etc/postfix/tls_policy.db-->
+* Restart Postfix:
+<pre>systemctl restart postfix.service</pre>
+* Set Postifx to start on boot:
+<pre>systemctl enable postfix.service</pre>
+* Now try sending a mail, it should reach your Gmail account:
+<pre>echo test 1 2 | mail -s "Test mail" user@gmail.com</pre>
+<b>NOTE:</b>  Some ISPs will block emails sent using this method.  Looking for a work around.
-Restart Postfix:
+== Troubleshooting ==
-{{Code|/etc/init.d/postfix restart}}
+* If you get the message " warning: SASL authentication failure: No worthy mechs found", install this package.
+ yum install cyrus-sasl{,-plain}
-Set Postifx to start on boot:
+:Restart Postfix
-{{Code|chkconfig postfix on}}
+ systemctl restart postfix
-Now try sending a mail, it should reach your Gmail account:
+* Receive the following message:
-{{Code|echo test 1 2 <nowiki>|</nowiki> mail -s "Test mail" user@gmail.com}}
+ connect to smtp.gmail.com[2607:f8b0:400e:c05::6d]:587: Network is unreachable
+:To correct this problem, change /etc/postfix/main.cf as follows:
+ inet_protocol = ipv4
+:Restart postfix
+ systemctl reload postfix
 See also:<br>
-[[Amahi_Mail_-_The_Free_Way|Amahi Mail - The Free Way]], not working on F14, yet.<br>
 [[Forward_System_Emails|Forward System Emails]]<br>
-[[Enable_Outgoing_Emails|Enable Outgoing Emails]], not working on F14, yet.<br>
 [[Monitor_System_Logs_via_E-mail|Monitor System Logs via E-mail]]<br>

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Difference between revisions of "Outgoing mail via gmail"

Latest revision as of 15:36, 17 June 2020

Troubleshooting