Introduction
mailsend is a simple command line program to send mail via SMTP protocol. I used to send a piece of alert mail from a program in a networked Windows machine. You might find it useful in some situations.
Latest Development version is 1.17b14
Synopsis
Version: @(#) mailsend v1.17b14 Copyright: BSD. It is illegal to use this software for Spamming (Compiled with OpenSSL version: OpenSSL 1.0.0g 18 Jan 2012) usage: mailsend [options] Where the options are: -copyright - show copyright information -smtp hostname/IP* - Hostname/IP address of the SMTP server -port SMTP port - SMTP port -d domain - domain name for SMTP HELO/EHLO -t to,to..* - email address/es of the recipient/s -cc cc,cc.. - Carbon copy address/es +cc - do not ask for Carbon Copy -ct seconds - Connect timeout. Default is 5 seconds -bc bcc,bcc.. - Blind carbon copy address/es +bc - do not ask for Blind carbon copy +D - don not add Date header -f address* - email address of the sender -sub subject - subject -lilst file - a file containing a list of email addresses -log file - write log messages to this file -attach file,mime_type,[i/a] (i=inline,a=attachment) - attach this file as attachment or inline -cs character set - for text/plain attachments (default is us-ascii) -enc type - Encoding Type. Only valid type: base64 -H "header" - Add custom Header -M "one line msg" - attach this one line text message -name "Full Name" - add name in the From header -v - verbose mode -show_attach - show attachment in verbose mode, default is no -V - show version info -w - wait for a CR after sending the mail -rt email_address - add Reply-To header -rrr email_address - request read receipts to this address -ssl - SMTP over SSL -starttls - Check for STARTTLS and if server supports, do it -auth - Try CRAM-MD5,LOGIN,PLAIN in that order -auth-cram-md5 - use AUTH CRAM-MD5 authentication -auth-plain - use AUTH PLAIN authentication -auth-login - use AUTH LOGIN authentication -user username - username for ESMTP authentication -pass password - password for ESMTP authentication -example - show examples -ehlo - force EHLO -info - show SMTP server information -help - shows this help -q - quiet
The options with * must be specified. Environment variables: SMTP_USER_PASS for plain text password (-pass).
For determining MIME types, please look at MIME Types.
Examples
VERSION
These examples are generated using
$ mailsend -V mailsend Version: @(#) mailsend v1.17b11 Compiled with OpenSSL: OpenSSL 0.9.8x 10 May 2012
Show server info
$ mailsend -v -info -port 587 -smtp smtp.gmail.com
$ mailsend -v -info -ssl -port 465 -smtp smtp.gmail.com
$ mailsend -v -info -smtp smtp.example.com -ct 2
STARTTLS + AUTHENTICATION
$ mailsend -to user@gmail.com -from user@gmail.com -starttls -port 587 -auth -smtp smtp.gmail.com -sub test +cc +bc -v -user you -pass "your_password"
SSL + AUTHENTICATION
$ mailsend -to user@gmail.com -from user@gmail.com -ssl -port 465 -auth -smtp smtp.gmail.com -sub test +cc +bc -v -user you -pass "your_password"
As -auth is specified, CRAM-MD5, LOGIN, PLAIN will be tried in that order. Use -auth-cram-md5, -auth-plan, -auth-login for specific auth mechanism.
Note: Password can be set by env var SMTP_USER_PASS instead of -pass
Attachments
$ mailsend -f user@example.com -smtp 10.100.30.1 -t user@example.com -sub test -attach "file.txt,text/plain" -attach "/usr/file.gif,image/gif" -attach "file.jpeg,image/jpg"
$ mailsend -f user@example.com -smtp 192.168.0.2 -t user@example.com -sub test +cc +bc -attach "c:\file.gif,image/gif" -M "Sending a GIF file"
$ mailsend -f user@example.com -smtp 192.168.0.2 -t user@example.com -sub test +cc +bc -cs "ISO-8859-1" -attach "file2.txt,text/plain"
Inline Attachment
$ mailsend -f user@example.com -d example.com -smtp 10.100.30.1 -t user@example.com -sub test -attach "nf.jpg,image/jpeg,i" -M "body line1: content disposition is inline" -M "body line2: this is line2 of the body"