Facilitating the sending of mail from a restricted communications network

• US 8,583,739 B2
• Filed: 03/02/2004
• Issued: 11/12/2013
• Est. Priority Date: 03/02/2004
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Elfner, Axel E.
• Primary Examiner(s): Pollack, Melvin H
• Application Number:
  US10/791,566
• Publication Number:
  US 20050198288A1
• Time in Patent Office: 3,542 Days
• Field of Search: 709/203, 709/206, 709/207, 709/218, 709/229, 709/237, 709/248, 709/249, 726 11- 15, 707/9, 707/10, 707/104.1, 710/54, 719/314, 370/395.72
• US Class Current: 709/206
• CPC Class Codes: H04L 51/214 using selective forwarding

Abstract

The sending of mail from a restricted communications network is facilitated. A communications unit external to the restricted communications network periodically pulls the mail from the restricted communications network and forwards the mail to a receiver. The receiver may be the intended recipient of the mail or an intermediary used to further send the mail to the intended recipient.

Claims

1. A method of sending mail, said method comprising:

providing a communications network wherein all ports used thereby for outgoing mail are closed;

accumulating outgoing mail by the communications network into a data structure;

automatically requesting outgoing mail periodically by a communications unit external to the communications network over an open port in the communications network;

verifying the communications unit and checking the data structure for outgoing mail by the communications network in response to an outgoing mail request from the communications unit;

transferring the outgoing mail from the data structure to the communications unit through one or more ports of the communications network other than the closed outgoing mail ports; and

delivering the outgoing mail to the one or more intended recipients.

2. The method of claim 1, wherein the transferring comprises pulling the outgoing mail by the communications unit through the one or more ports.

3. The method of claim 1, wherein the communications network comprises a firewall configured to close the outgoing mail ports.

4. The method of claim 1, wherein the communications network uses a Simple Mail Transfer Protocol (SMTP) for outgoing mail.

5. The method of claim 1, wherein the transferring comprises transferring the outgoing mail through the open port.

6. The method of claim 1, wherein the transferring comprises utilizing Hypertext Transfer Protocol (HTTP) to serve the outgoing mail to a HTTP client of the communications unit.

7. The method of claim 1, wherein the delivering comprises forwarding the mail from the communications unit to one or more receivers.

8. The method of claim 7, wherein a receiver of the one or more receivers comprises an intended recipient of the mail.

9. The method of claim 7, wherein a receiver of the one or more receivers comprises an intermediary to facilitate forwarding the mail to an intended recipient of the mail.

10. The method of claim 7, wherein the forwarding comprises parsing the mail into one or more messages and sending the one or more messages to the one or more receivers.

11. The method of claim 10, wherein the manner in which a message is sent to a receiver is dependent on the type of receiver.