How to send an email from command line or script? I want to be able to run the script programmatically by passing the receiver and the message.
There are two programs that I am aware of which will easily allow you to configure your Mac to send email from the command line.
I have written up HOWTOs for both of them:
Of the two, I suggest
Configuration is complicated enough that I'm not sure if I should replicate all of the steps here, but I will mention that if you use Homebrew you can install msmtp using
brew install msmtp --with-macosx-keyring
Then the rest is just a matter of setting up the related configuration files
The first is
# Begin msmtprc # Set default values for all following accounts. defaults tls on logfile ~/.msmtp.log # A first gmail address account firstname.lastname@example.org host smtp.gmail.com port 587 protocol smtp auth on from email@example.com user firstname.lastname@example.org tls on tls_starttls on # this next line is crucial: you have to point to the correct security certificate for GMail. # If this doesn't work, check the mstmp documentation # at http://msmtp.sourceforge.net/documentation.html for help # # This next line should all be on one long line: tls_trust_file /path/to/Thawte Roots/Thawte SSLWeb Server Roots/thawte Premium Server CA/Thawte Premium Server CA.pem # Set a default account # You need to set a default account for Mail account default : email@example.com # end msmtprc
tls_trust_file line should point to wherever you have downloaded and installed the certificates from https://www.thawte.com/roots/index.html.
I put mine in
~/Dropbox/Thawte Roots so that I can have it on all of my Macs.
Then you need a
~/.mailrc file to say where the msmtp binary is located. If you use
brew it will be
/usr/local/bin/msmtp so the file would look like this:
The last but crucial step is making sure your Keychain has the information exactly in the format that msmtp will expect it:
I think that covers most of the details. See http://www.tuaw.com/2010/05/04/msmtp-a-free-tool-to-send-email-from-terminal/ if you want a few more specifics.
This worked for me, it was written with Lion in mind but works for Mountain Lion. Btw this is using Gmail so if you're not...
You don't need to download anything! (just setup a gmail account)
Configure Postfix for Gmail SMTP Edit file /etc/postfix/main.cf
sudo vim /etc/postfix/main.cf
and add in the following below the commented out relayhosts :-
relayhost = [smtp.gmail.com]:587 smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_sasl_security_options = noanonymous smtp_use_tls = yes
Generate sasl_password if not already exists
sudo vim /etc/postfix/sasl_passwd
and enter in the following:-
Run the following commands
sudo chmod 600 /etc/postfix/sasl_passwd sudo postmap /etc/postfix/sasl_passwd sudo launchctl stop org.postfix.master sudo launchctl start org.postfix.master
And you are done….
Now, you should be able to send emails from within the command line e.g. to send the contents of a directory as a tree to an email address
tree /var/www/somefolder | mail -s "contents" firstname.lastname@example.org
The most basic way to send mail is trough a telnet session with the smtp server of your provider/network. After you contacted the server and after every command the server will answer if it accepts the command with something like "250 OK", or if not with an error message.
All details can be found in RFC2821 - Simple Mail Transfer Protocol, Google for it. This basic way is great for testing why something goes wrong sending mail, but I think it's quite complicated to script it full proof.
First get an command-line interface on your computer, by starting Terminal. Then continue with the following commands, one after one.
Open a telnet session to port 25 of the smtp server of your provider/network
telnet name_or_ip_of_smtp_server 25
say hello plus the internetname of your provider/network, like abc.com
a from=return address is needed, the < and > are part of the command
give one or more destinations, the < and > are part of the command
RCPT TO:<destination_email_address> RCPT TO:<second_destination_email_address> RCPT TO:<etc_destination_email_address>
tell the server you want start sending data
now the server should answer you can start sending your mail and goes into data-mode
your data more data etc
now finish data with a dot as only char on a line
the server goes back to command-mode so you can quit
mtcmail is another option: http://www.macupdate.com/app/mac/33505/mtcmail-cli.
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