Find Jobs
Hire Freelancers

Anti-spam mail system

$500-5000 USD

Completed
Posted almost 21 years ago

$500-5000 USD

Paid on delivery
This is a system to prevent unwanted mail from reaching our mailbox. The system must have a list of authorised users, unauthorised users and unknown users for each mail account, and this list must be editable by the user at any time through a web interface or through an email sent to the mail server. It must have a simple interface for inserting new users and each user has to have a control center to manage his/her options. The idea is to have a challenge-response system to validate unknown users. Architecture of the system The system sits in a server independent of the end user and the mail server. The server name will be named [login to view URL] in the remainder of this document. The user has to supply all email configuration information to antispam.incentral.com. Then, the end user mail configuration will be changed to the new values: [login to view URL] will be replaced by [login to view URL] com, oldusername will be changed to newuser@antispam, and the password will probably stay the same. [login to view URL] checks for new mail every hour at the old mail server. If the user has messages from authorised users, then [login to view URL] stores them for download next time the user connects. If it has mail from unauthorised users, it either deletes them or tags them in the subject line with ***SPAM***, depending on the user configuration. If it has mail from unknown users, it sends then a reply from the user account with "Re:" and the mail title, with a message such as "This is an automated reply from the antispam system at incentral. Please veruify that you are a human user by clicking on the follwing link and replying to a simple, non-machine readable question". The user will be sent to a web page, which will have the image of a dog, and will have a combo box with 30 alternatives, one of which will be "dog". A spam system will not be able to tell a dog picture automatically, while a human will find it very easy. If the test is passed, the user is automatically put in the authorised users mail list, and if not, then either the message is deleted or tagged as spam. If there is no reply, then either it is deleted or tagged as spam. When the user of the system sends a mail to someone, the email goes through [login to view URL], and the recipient of the message is automatically added to the authorised users list. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform Windows 2000, IIS, SQL server or MySQL
Project ID: 2935291

About the project

25 proposals
Remote project
Active 21 yrs ago

Looking to make some money?

Benefits of bidding on Freelancer

Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
Awarded to:
User Avatar
See private message.
$425 USD in 14 days
4.6 (33 reviews)
5.4
5.4
25 freelancers are bidding on average $794 USD for this job
User Avatar
See private message.
$425 USD in 14 days
5.0 (284 reviews)
7.3
7.3
User Avatar
See private message.
$2,125 USD in 14 days
5.0 (10 reviews)
5.3
5.3
User Avatar
See private message.
$425 USD in 14 days
5.0 (23 reviews)
5.4
5.4
User Avatar
See private message.
$1,700 USD in 14 days
5.0 (9 reviews)
5.2
5.2
User Avatar
See private message.
$510 USD in 14 days
4.9 (106 reviews)
5.5
5.5
User Avatar
See private message.
$425 USD in 14 days
5.0 (7 reviews)
5.0
5.0
User Avatar
See private message.
$425 USD in 14 days
5.0 (11 reviews)
4.9
4.9
User Avatar
See private message.
$1,487.50 USD in 14 days
4.9 (14 reviews)
5.0
5.0
User Avatar
See private message.
$1,101.60 USD in 14 days
5.0 (9 reviews)
3.7
3.7
User Avatar
See private message.
$1,530 USD in 14 days
5.0 (2 reviews)
3.9
3.9
User Avatar
See private message.
$595 USD in 14 days
4.5 (24 reviews)
4.0
4.0
User Avatar
See private message.
$595 USD in 14 days
3.3 (9 reviews)
4.4
4.4
User Avatar
See private message.
$680 USD in 14 days
5.0 (2 reviews)
1.4
1.4
User Avatar
See private message.
$637.50 USD in 14 days
0.0 (1 review)
0.0
0.0
User Avatar
See private message.
$425 USD in 14 days
0.0 (0 reviews)
0.0
0.0
User Avatar
See private message.
$510 USD in 14 days
0.0 (1 review)
0.0
0.0
User Avatar
See private message.
$425 USD in 14 days
0.0 (0 reviews)
0.0
0.0
User Avatar
See private message.
$850 USD in 14 days
0.0 (0 reviews)
0.0
0.0
User Avatar
See private message.
$425 USD in 14 days
0.0 (0 reviews)
0.8
0.8
User Avatar
See private message.
$425 USD in 14 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of SPAIN
Spain
5.0
1
Member since Jun 3, 2002

Client Verification

Thanks! We’ve emailed you a link to claim your free credit.
Something went wrong while sending your email. Please try again.
Registered Users Total Jobs Posted
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
Loading preview
Permission granted for Geolocation.
Your login session has expired and you have been logged out. Please log in again.