sendgmail -- CLI tool to send email via Gmail

This is no longer maintainted

For what?

Sending alert by Email is useful, but there're servers without root/sudo previledge.

Or you wouldn't want to setup smtp server on your desktop PC or laptop.

Those are the times you'd need this tool!

How to use

It works like sendmail/mailx. For example:

$ echo "this is mail body" | sendgmail -s "Mail subject" -t "Mail TO" -g "Your Gmail acount to send the mail" -p "Your Gmail Password"

Options

Here's the list of command line options

Usage of ./sendgmail:
  -c 'mail cc'
  -f 'mail from'
  -g 'Gmail account email is sent from'
  -p 'Gmail password'
  -rm Raw mode
  -s 'subject'
  -t 'mail to'
  -v Verbose

Raw mode

When you want to send Email with attachment using sendmail/mailx command, you'd need to customize mail header and include encoded data.

Raw mode behaves just like sendmail/mailx.

For example, mail body is like this:

encoded data

$ base64 /tmp/test.txt
 dGhpcyBpcyB0ZXN0Cgo=

and the mail body to send

$ cat /tmp/testmail.txt
From: Sender Name <senderaccount@gmail.com>
To: Recpt Name <destinationaccount@gmail.com>
Subject: Test mail
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="12345678"; charset="us-ascii"
Content-Transfer-Encoding: 7bit

--12345678
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit

This is test message.
from linux mail command

--12345678
MIME-Version: 1.0
Content-Type: text/plain; name="test.txt"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="test.txt"

dGhpcyBpcyB0ZXN0Cgo=

--12345678

You send Email with "-rm" option.

$ cat /tmp/testmail.txt | sendgmail -rm -t destinationaccount@gmail.com -g senderaccount@gmail.com -p senderpassword

Default Gmail account/password

Your default Gmail account and password can be set to "sendgmail.conf", which looks like this.

{
"Gmailuser":"your_Gmail_account",
"Gmailpass":"your_Gmail_password"
}

Rename sendmail.conf-sample to sendmail.conf, edit, and place it in the same directory as sendgmail.

Alternatively, you can hardcode those by editing the lines below:

const (
	default_smtpauthuser = "" // Default(Your) Gmail account
	default_smtpauthpass = "" // Default(Your) Gmail password
)

Note: In case multiple Gmail accounts/passwords are supplied, those are used accordingly to the following priority:

command line > conf > const (hardcoded values)

Testing environment

• OSX 10.10 (Mac, x64)
• Rasbian (Debian 7, ARM)