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#!/bin/bash | |
HOST=$(hostname) | |
function install_postfix() { | |
echo | sudo debconf-set-selections <<__EOF | |
postfix postfix/root_address string | |
postfix postfix/rfc1035_violation boolean false | |
postfix postfix/mydomain_warning boolean | |
postfix postfix/mynetworks string 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 | |
postfix postfix/mailname string $HOST | |
postfix postfix/tlsmgr_upgrade_warning boolean | |
postfix postfix/recipient_delim string + | |
postfix postfix/main_mailer_type select Internet with smarthost | |
postfix postfix/destinations string $HOST, localhost.localdomain, localhost | |
postfix postfix/retry_upgrade_warning boolean | |
# Install postfix despite an unsupported kernel? | |
postfix postfix/kernel_version_warning boolean | |
postfix postfix/not_configured error | |
postfix postfix/sqlite_warning boolean | |
postfix postfix/mailbox_limit string 0 | |
postfix postfix/relayhost string [smtp.gmail.com]:587 | |
postfix postfix/procmail boolean false | |
postfix postfix/bad_recipient_delimiter error | |
postfix postfix/protocols select all | |
postfix postfix/chattr boolean false | |
__EOF | |
echo "Postfix should be configured as Internet site with smarthost" | |
sudo apt-get install -q -y postfix | |
} | |
if ! dpkg -s postfix >/dev/null; | |
then | |
install_postfix | |
else | |
echo "Postfix is already installed." | |
echo "You may consider removing it before running the script." | |
echo "You may do so with the following command:" | |
echo "sudo apt-get purge postfix" | |
echo | |
fi | |
if zenity --version >/dev/null; then | |
GMAIL_USER=$(zenity --entry --title="Gmail username" --text="Enter your gmail username:") | |
GMAIL_PASS=$(zenity --entry --title="Gmail password" --text="Enter your gmail password:" --hide-text) | |
else | |
read -p "Gmail username: " GMAIL_USER | |
read -sp "Gmail password: " GMAIL_PASS | |
fi | |
echo # an empty line | |
if [ -z "$GMAIL_USER" ]; then echo "No gmail username given. Exiting."; exit -1; fi | |
if [ -z "$GMAIL_PASS" ]; then echo "No gmail password given. Exiting."; exit -1; fi | |
if ! [ -f /etc/postfix/main.cf.original ]; then | |
sudo cp /etc/postfix/main.cf /etc/postfix/main.cf.original | |
fi | |
sudo tee /etc/postfix/main.cf >/dev/null <<__EOF | |
relayhost = [smtp.gmail.com]:587 | |
smtp_use_tls = yes | |
smtp_sasl_auth_enable = yes | |
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd | |
smtp_sasl_security_options = noanonymous | |
smtp_tls_loglevel = 1 | |
smtp_tls_per_site = hash:/etc/postfix/tls_per_site | |
smtp_tls_CAfile = /etc/ssl/certs/Equifax_Secure_CA.pem | |
smtp_tls_session_cache_database = btree:/var/lib/postfix/smtp_tls_session_cache | |
__EOF | |
echo "[smtp.gmail.com]:587 $GMAIL_USER:$GMAIL_PASS" | sudo tee /etc/postfix/sasl_passwd >/dev/null | |
sudo chmod 400 /etc/postfix/sasl_passwd | |
sudo postmap /etc/postfix/sasl_passwd | |
echo "smtp.gmail.com MUST" | sudo tee /etc/postfix/tls_per_site >/dev/null | |
sudo chmod 400 /etc/postfix/tls_per_site | |
sudo postmap /etc/postfix/tls_per_site | |
sudo service postfix restart | |
echo "Configuration done" | |
mail -s "Email relaying configured at ${HOST}" $GMAIL_USER@gmail.com <<__EOF | |
The postfix service has been configured at host '${HOST}'. | |
Thank you for using this postfix configuration script. | |
__EOF | |
echo "I have sent you a mail to $GMAIL_USER@gmail.com" | |
echo "This will confirm that the configuration is good." | |
echo "Please check your inbox at gmail." | |
Works like a charm after installing manually mailutils.
Thanks a lot.
Hey, thanks a lot!
This script worked great for me. I wasted a day trying to configure sendmail for Ubuntu 14.04 and visited half-dozen sites before finding this well-written script.
It prompted me for not having mail. Once I ran 'sudo apt-get install mailutils' and 'sudo apt-get install sensible-mda', the script started to send email to my newly created gmail account. Don't use your existing gmail accounts, Google may block the traffic as a security protection measure.
I get this when i run the wget command:
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|23.235.39.133|:443... connected.
HTTP request sent, awaiting response... 400 Bad Request
2016-04-27 22:10:24 ERROR 400: Bad Request.
This script works like magic. Save me a lot of time.
@markandersonus the proper wget
command is:
wget https://gist.githubusercontent.com/sshtmc/3952294/raw/7b5b230a04994ab387538b118d7a32dda54eb757/ubuntu-configure-sendmail-with-gmail/ -O- | bash
add sudo
if necessary.
I can't see where to add my Gmail username and password to /etc/postfix/main.cf
snip from the tail of the command above
Running newaliases
Processing triggers for libc-bin (2.23-0ubuntu9) ...
Processing triggers for systemd (229-4ubuntu19) ...
Processing triggers for ureadahead (0.100.0-19) ...
Processing triggers for ufw (0.35-0ubuntu2) ...
bash: line 44: zenity: command not found
No gmail username given. Exiting.
since end oct. 2017 the thing didn't work anymore. In the syslog complaints:
untrusted issuer /OU=GlobalSign Root CA - R2/O=GlobalSign/CN=GlobalSign
After editing the script: change Equifax_Secure_CA.pem into GlobalSign_Root_CA_-_R2.pem and
re-executing the script it is working again.
Thank you so much!
It works for me on trusty after installing mailutils manually.