- Mail Pilot 3 0 (7241) – Task Oriented Email Clients
- Mail Pilot 3 0 (7241) – Task Oriented Email Client Example
- Mail Pilot 3 0 (7241) – Task Oriented Email Client Asks
GNU Library or Lesser General Public License version 3.0 (15) IBM Public License (1) ISC License (2) Microsoft Public License (1) Microsoft Reciprocal License (1) MIT License (41) Mozilla Public License 1.0 (4) Mozilla Public License 1.1 (9) Mozilla Public License 2.0 (1) NASA Open Source Agreement (8) Non-Profit Open Software License 3.0 (1). Mail Pilot simplifies email with a task-oriented approach. From deleting an advertisement to remembering to pay your cell phone bill, all messages are action-based. COMPLETE YOUR MESSAGES When you're done with a message, simply change its status from Incomplete to Complete, just like a.
OVERVIEW:
For this assignment I created a simple mail client that sends an email to a recipient. My client establishes a TCP connection with a mail server, exchanges with the mail server using the SMTP protocol, sends an email to a recipient via the mail server, then finally closes the TCP connection with the mail server. To test this, I send an email to myself and examine the results.
CLIENT CODE:
For this assignment I was able to adapt my code by referencing a combination of the skeleton code provided by the Computer Networking A Top Down Approach student resources, section 2.4.1 of the same book, and RFC 2821.
#——————————————————————————-
# Name: mailclient.py
# Purpose: SMTP Mail Client
#
# Author: Jeff Lee
#
# Created: 30/10/2013
# Copyright: (c) Jeff 2013
# Licence: <your licence>
#——————————————————————————-
from socket import *
# Name: mailclient.py
# Purpose: SMTP Mail Client
#
# Author: Jeff Lee
#
# Created: 30/10/2013
# Copyright: (c) Jeff 2013
# Licence: <your licence>
#——————————————————————————-
from socket import *
def main():
msg=’rn I love computer networks!’ # message to be sent in email body
endmsg=’rn.rn’ # message which will signal end of message
mailServer =’localhost’ # free SMTP Server host
clientSocket = socket(AF_INET, SOCK_STREAM) # create socket
clientSocket.connect((mailServer, 25)) # establish TCP connection with mail server
recv=clientSocket.recv(1024) # the data that clientsocket recieves
print recv # print data recieved (expecting Ready Code and name of server)
if recv[:3]!=’220′: # if ready code not recieved
print ‘220 reply not received from server.’ # print error mssg
msg=’rn I love computer networks!’ # message to be sent in email body
endmsg=’rn.rn’ # message which will signal end of message
mailServer =’localhost’ # free SMTP Server host
clientSocket = socket(AF_INET, SOCK_STREAM) # create socket
clientSocket.connect((mailServer, 25)) # establish TCP connection with mail server
recv=clientSocket.recv(1024) # the data that clientsocket recieves
print recv # print data recieved (expecting Ready Code and name of server)
if recv[:3]!=’220′: # if ready code not recieved
print ‘220 reply not received from server.’ # print error mssg
#Send HELO command and print server response.
heloCommand=’HELO Localhostrn’ # helo command to server
clientSocket.send(heloCommand) # send helo command (initiate handshake)
recv1=clientSocket.recv(1024) # response from server
print recv1 # print respone (expecting Action Completed Code + Hello response mssg)
if recv1[:3]!=’250′: # if action completed code not recieved
print ‘250 reply not received from server.’ # print error mssg
heloCommand=’HELO Localhostrn’ # helo command to server
clientSocket.send(heloCommand) # send helo command (initiate handshake)
recv1=clientSocket.recv(1024) # response from server
print recv1 # print respone (expecting Action Completed Code + Hello response mssg)
if recv1[:3]!=’250′: # if action completed code not recieved
print ‘250 reply not received from server.’ # print error mssg
#Send MAIL FROM command and print server response.
clientSocket.send(‘MAIL FROM: <[email protected]>rn’) # send who is supposedly sending the email
recv1 = clientSocket.recv(1024) # data that is recieved back
print recv1 # print data (expecting Action Completed Code + confirmation of valid from address)
if recv1[:3] != ‘250’: #if the data is not received # if action completed code not recieved
print ‘250 reply not received from server.’ # print error mssg
clientSocket.send(‘MAIL FROM: <[email protected]>rn’) # send who is supposedly sending the email
recv1 = clientSocket.recv(1024) # data that is recieved back
print recv1 # print data (expecting Action Completed Code + confirmation of valid from address)
if recv1[:3] != ‘250’: #if the data is not received # if action completed code not recieved
print ‘250 reply not received from server.’ # print error mssg
#Send RCPT TO command and print server response.
clientSocket.send(‘RCPT TO: <[email protected]> rn’) # send who will recieve the email
recv1 = clientSocket.recv(1024) # data recieved back
print recv1 # print data (expecting Action Completed Code + confirmation of valid to address)
if recv1[:3] != ‘250’: # if action completed code not recieved
print ‘250 reply not received from server.’ # print error mssg
clientSocket.send(‘RCPT TO: <[email protected]> rn’) # send who will recieve the email
recv1 = clientSocket.recv(1024) # data recieved back
print recv1 # print data (expecting Action Completed Code + confirmation of valid to address)
if recv1[:3] != ‘250’: # if action completed code not recieved
print ‘250 reply not received from server.’ # print error mssg
#Send DATA command and print server response.
clientSocket.send(‘DATArn’) # send the data command
recv1 = clientSocket.recv(1024) # data that is recieved back
print recv1 # print data (should be Mail Input code 354….)
if recv1[:3] != ‘354’: # if 354 code not received
print ‘250 reply not received from server.’ # print error mssg
clientSocket.send(‘DATArn’) # send the data command
recv1 = clientSocket.recv(1024) # data that is recieved back
print recv1 # print data (should be Mail Input code 354….)
if recv1[:3] != ‘354’: # if 354 code not received
print ‘250 reply not received from server.’ # print error mssg
#Send message data.
clientSocket.send(msg) # send message to be sent in the email body
clientSocket.send(msg) # send message to be sent in the email body
#Message ends with a single period.
clientSocket.send(endmsg) # signal end of email message
recv1 = clientSocket.recv(1024) # response back
print recv1 # print response (expecting Action Completed Code + OK as reply to DATA)
if recv1[:3] != ‘250’: # if not as expected
print ‘250 reply not received from server.’ # print error mssg
clientSocket.send(endmsg) # signal end of email message
recv1 = clientSocket.recv(1024) # response back
print recv1 # print response (expecting Action Completed Code + OK as reply to DATA)
if recv1[:3] != ‘250’: # if not as expected
print ‘250 reply not received from server.’ # print error mssg
#Send QUIT command and get server response.
clientSocket.send(‘QUITrn’) # send QUIT command
clientSocket.close() # close socket
clientSocket.send(‘QUITrn’) # send QUIT command
clientSocket.close() # close socket
pass
if __name__ ‘__main__’:
main()
main()
CODE BREAKDOWN:
In my code I .
1) Specify the message that will be send in the email
2) Specify the mail server
3) Create a connection to the server and print the server’s reply (or an error if there’s a problem)
4) Handshake by sending HELO and receiving server reply… (and print reply or error)
5) Send Mail FROM field and receive acknowledge from the server.(and print reply or error)
6) Send RCPT TO: field and receive acknowledge from the server.(and print reply or error)
7) Send DATA command and receive reply from the server.(and print reply or error)
8) Finally…now the email body message which we declared in step 1 is sent
9) After the message is finished we send an isolated period to signal the end of our email. Then the server replies with a confirmation or error (which I print).
10) And at last…the QUIT command is sent and we close the connection.
PREPARING SMTP SERVER
To test my implementation I used my own free SMTP server which I was able to download from softstack.com as pictured here:
After installing it, I simply ran it and used the default port number (25) as pictured here:
Now the server is running and I can begin to test my client.
RUNNING & TESTING THE CLIENT:
To test my implementation, all I need to do is run it… as I’ve already specified everything it needs to send an email In it. If successful I should ultimately receive an email at my hotmail email address seemingly from my school email address… and at every step along the way my client should have printed out a record of the responses that the server sent back to it.
FREE SMTP SERVER ACTIVITY PROOF
When the client code is run if you look into the Free SMTP Server window you will see the resulting connection listed under Active Connections… unfortunately for photo purposes this happens pretty fast so I was unable to get a screenshot of this in action but the following illustrates what you could expect:
CLIENT RECORD OF MAIL SERVER REPLIES
Here, at the bottom, you can see the recorded reply messages (that the server sent according to SMTP protocol) are as expected:
EMAIL PROOF
And finally checking the email which the mail was meant to be sent to, I see that the email message was in fact delivered properly with all the correct parameters.
ERROR EXAMPLE
The above solution worked without issue, but here’s an example just to show would happen had the server encountered something unexpected. In this case it just so happens that my Free SMTP Server only allows a small number of messages to be sent per day…. so what happens when that limit is exceeded? … In this screenshot you can see from the printed record of replies from the server that the email isn’t successfully delivered and an error code and message is displayed accordingly and so nothing arrives in my inbox.
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PILOT EMAIL LEADS – DIRECT MAIL LEADS – QUALITY GUARANTEE:
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Pilot Email Address … 90+% accurate or money refund
Pilot Phone Number … 95% accurate or money refund
All pilot leads have the following “money-refund” quality guarantee:
Pilot Contact Name … 95+% accurate or money refund
Pilot Direct Mail Address … 95+% accurate or money refund
Pilot Email Address … 90+% accurate or money refund
Pilot Phone Number … 95% accurate or money refund
![Mail Pilot 3 0 (7241) – Task Oriented Email Client Mail Pilot 3 0 (7241) – Task Oriented Email Client](https://media.idownloadblog.com/wp-content/uploads/2015/01/Mail-Pilot-2-teaser-002.png)
PILOT EMAIL LEADS:
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PILOT EMAIL LIST – MAILING LIST QUALIFIERS:
Butler 4 3 1. Of course not all pilots are alike, so use our extensive array of qualifiers to pinpoint the type of pilots that work best for your offer.
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CERTIFICATION LEVEL AVAILABLE WITH PILOT EMAIL LEADS – MAIL LEADS:
Commercial pilot, student pilot, recreational pilot, private pilot.
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PILOT DEMOGRAPHICS AVAILABLE WITH PILOT EMAIL LEADS – MAIL LEADS:
Age, gender, income, net worth, race/ethnicity, marital status, and more.
Age, gender, income, net worth, race/ethnicity, marital status, and more.
Mail Pilot 3 0 (7241) – Task Oriented Email Clients
PILOT RATINGS:
Advanced
Airframe
Multi-engine airplane
Single engine airplane
Multi-single engine
Glider
Glider Aero Tow
Instrument
Instrument Airplane
Instrument Helicopter
Instrument Airplane & Helicopter
Lighter-than-air free balloon
Multi-Engine Sea
Powerplant
Rotocraft Helicopter
Single Engine SEA
Sport
Turbojet Powered
Advanced
Airframe
Multi-engine airplane
Single engine airplane
Multi-single engine
Glider
Glider Aero Tow
Instrument
Instrument Airplane
Instrument Helicopter
Instrument Airplane & Helicopter
Lighter-than-air free balloon
Multi-Engine Sea
Powerplant
Rotocraft Helicopter
Single Engine SEA
Sport
Turbojet Powered
CUSTOM PILOT MAILING LISTS:
Pilot Getaways: Subscribers to a magazine dedicated to private pilot travel. 98% male; average age 54.
Qty: 6,410
Qty: 6,410
Plane & Pilot Magazine: Subscribers to a magazine for mainstream, general aviation pilots committed to private aviation. 85% male, 7% female; average age 45.
Qty: 35,510
*Canadian subscribers: 13,226
Qty: 35,510
*Canadian subscribers: 13,226
Sport Pilot Magazine: Subscribers to a magazine for aviation hobbyists.
Qty: 4,923
Qty: 4,923
Flying Magazine: Subscribers to and expires of an aviation magazine written for pilots of all types of aircraft; covers products, services, pilot technique, aircraft operations and flight training.
81% male, 6% female; average age 49.
Qty: 105,988
81% male, 6% female; average age 49.
Qty: 105,988
Aviation International News Magazine: Subscribers to a magazine that provides the pilot and aviation industry with the latest information on business, commercial, and regional flying worldwide.
80% male, 19% female.
Qty: 50,446
International Subscribers: 15,336
–
Corporate Flight Dept: 17,016
Charter Flight Companies: 6,099
Air Tax Companies: 882
Fractional Air Companies:
80% male, 19% female.
Qty: 50,446
International Subscribers: 15,336
–
Corporate Flight Dept: 17,016
Charter Flight Companies: 6,099
Air Tax Companies: 882
Fractional Air Companies:
![Mail pilot 3 0 (7241) – task oriented email client example Mail pilot 3 0 (7241) – task oriented email client example](https://news.softpedia.com/images/extra/MAC/large/Mail Pilot_6large.jpg)
Mail Pilot 3 0 (7241) – Task Oriented Email Client Example
Avionics Magazine: Subscribers to a magazine for commercial and military aviation professionals; covers topics such as corporate aircrafts, air traffic control, satellite navigation and positioning and commercial transportation.
85% male, 7% female.
Qty: 31,820
Commercial jets: 14,770
Business jets: 12,993
Military jets: 11,349
Heavy turbo prop: 7,781
Light turbo prop: 8,538
Helicopters: 14,065
85% male, 7% female.
Qty: 31,820
Commercial jets: 14,770
Business jets: 12,993
Military jets: 11,349
Heavy turbo prop: 7,781
Light turbo prop: 8,538
Helicopters: 14,065
Mail Pilot 3 0 (7241) – Task Oriented Email Client Asks
VACATION HOME BUYERS:
Pilots are a great target for vacation home offers … since pilots can easily fly themselves to any location … with their own plane or leased plane. Of course, not all pilots have the financial resources for buying a secondary home, so use our net worth and income indicators to focus on high income – affluent pilots.
Pilots are a great target for vacation home offers … since pilots can easily fly themselves to any location … with their own plane or leased plane. Of course, not all pilots have the financial resources for buying a secondary home, so use our net worth and income indicators to focus on high income – affluent pilots.