mailsend - Send mail via SMTP protocol from command line

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

mailsend - Send mail via SMTP protocol from command line  mailsend1.17b14.exe   959 KB

Synopsis

Version: @(#) mailsend v1.17b14

 Copyright: BSD. It is illegal to use this software for Spamming

 (Compiled with OpenSSL version: OpenSSL 1.0.0g  Jan )
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 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 May
 

Show server info


$ mailsend -v -info -port  -smtp smtp.gmail.com
$ mailsend -v -info -ssl -port  -smtp smtp.gmail.com
$ mailsend -v -info -smtp smtp.example.com -ct 

STARTTLS + AUTHENTICATION


 $ mailsend -to user@gmail.com -from user@gmail.com
-starttls -port -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 -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"
 
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