Shell Programming and Scripting

(   echo "MAIL FROM: xxxxx@yyyyy.com"
    sleep 1
    echo "RCPT TO: zzzzz@yyyyy.com"
    sleep 1
    echo "DATA"                                 #thank goodness it seems to receive DATA fast!
    echo "Subject: Test email"
    echo                                        #requires two new lines for subject
    echo "This is a test"
    echo
    cat filename | base64
    echo "."                                    #end of DATA character
    sleep 1
    echo "QUIT" ) | telnet smtp.yyyyy.com 25

--MyDogHasFleas
Content-Type: text/csv; name="thing.csv"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="thing.csv"

base64 lines


--MyDogHasFleas--

{   echo "MAIL FROM: me@yyyy.com"
    sleep 1
    echo "RCPT TO: you@xxxx.com"
    sleep 1
    echo "DATA"
    sleep 1
    echo "Subject: Test email" # some sources say extra line after subject but it breaks MIME for some reason.
    echo "From: Me <me@yyyy.com>" # gmail will reject email without additional From: header
    echo "MIME-Version: 1.0"
    echo "Content-Type: multipart/mixed; boundary=\"XXXXboundary text\""
    echo    
    echo "This is a multipart message in MIME format."
    echo "If you can read this you need a newer mail client or you need to stop playing with your time machine."
    echo "RmVsbG93IE1hbW1hbHM6IFdlIHN0cmlrZSB0aGUgRGlub3NhdXJzIGF0IGRhd24uICBMb25nIGxpdmUgdGhlIGV2b2x1dGlvbiEK"
    echo
    echo "--XXXXboundary text"
    echo "Content-Type: text/plain"
    echo    
    echo "this is the body text"
    echo
    echo "--XXXXboundary text"
    echo "Content-Type: text/csv; name=\"thing.csv\""
    echo "Content-Transfer-Encoding: base64"
    echo "Content-Disposition: attachment; filename=\"thing.csv\""
    echo
    base64 <myfile.csv
    echo
    echo "--XXXXboundary text--"
    echo "."
    sleep 1
    echo "QUIT"; } | telnet smtp.yyyy.com 25

set timeout -1
spawn $env(SHELL)
match_max 100000
expect -exact "# "
send -- "telnet localhost 25\r"
expect -exact "telnet localhost 25\r
Trying 127.0.0.1...\r\r
Connected to localhost.\r\r
Escape character is '^\]'.\r\r
220 Laptop ESMTP Postfix\r
"
send -- "ehlo localhost\r"
expect -exact "ehlo localhost\r
250-Laptop\r
250-PIPELINING\r
250-SIZE 10240000\r
250-VRFY\r
250-ETRN\r
250-ENHANCEDSTATUSCODES\r
250-8BITMIME\r
250 DSN\r
"
send -- "mail from: me@mydomain.com\r"
expect -exact "mail from me@mydomain.com\r
250 2.1.0 Ok\r
"
send -- "rcpt to: you@yourdomain.com\r"
expect -exact "rcpt to: you@yourdomain.com\r
250 2.1.5 Ok\r
"
send -- "data\r"
expect -exact "data\r
354 End data with <CR><LF>.<CR><LF>\r
"
send -- "Subject: Testing again\r"
expect -exact "Subject: Testing again\r
"
send -- "\r"
expect -exact "\r
"
send -- "This is a test. only Only a test.\r
"
send -- "\r"
expect -exact "\r
"
send -- ".\r"
expect -exact ".\r
250 2.0.0 Ok: queued as EA2CCD202EA\r
"
send -- "quit\r"
expect -exact "quit\r
221 2.0.0 Bye\r
Connection closed by foreign host.\r\r
# "
send -- "^C"
expect -exact "\r
# "
send -- "^D"
expect eof