SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                ----------------

                                 SCHEDULE 13D
                                (Rule 13d-101)

            INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
           TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO
                                 RULE 13d-2(a)

                             (Amendment No. 3 )(1)


                         EASYLINK SERVICES CORPORATION
--------------------------------------------------------------------------------
                                (Name of Issuer)


                              CLASS A COMMON STOCK
--------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                  277 84T 101
--------------------------------------------------------------------------------
                                 (CUSIP Number)

                ROBERT S. FEIT, VICE PRESIDENT-LAW AND SECRETARY
             AT&T CORP., ONE AT&T WAY, BEDMINSTER, NEW JERSEY 07921
                                 (908) 221-2000
--------------------------------------------------------------------------------
                 (Name, Address and Telephone Number of Person
               Authorized to Receive Notices and Communications)


                                OCTOBER 20, 2003
--------------------------------------------------------------------------------
             (Date of Event which Requires Filing of This Statement)

     If the filing  person has  previously  filed a statement on Schedule 13G to
report the  acquisition  that is the subject of this Schedule 13D, and is filing
this  schedule  because  of Rule  13d-1(e),  13d-1(f)  or  13d-1(g),  check  the
following box [_].


          Note:  Schedules filed in paper format shall include a signed original
     and five copies of the schedule, including all exhibits. See Rule 13d-7 for
     other parties to whom copies are to be sent.

                         (Continued on following pages)
                               (Page 1 of 5 Pages)

----------
(1)  The  remainder  of this  cover  page  shall be filled  out for a  reporting
     person's  initial  filing on this form with respect to the subject class of
     securities,  and for any subsequent amendment containing  information which
     would alter disclosures provided in a prior cover page.

     The  information  required on the remainder of this cover page shall not be
deemed to be "filed"  for the purpose of Section 18 of the  Securities  Exchange
Act of 1934 or otherwise  subject to the  liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).






CUSIP No. 277 84T 101                  13D                     Page 2 of 5 Pages


________________________________________________________________________________
1    NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

     AT&T Corp.
     IRS No. 13-4924710
________________________________________________________________________________
2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                 (a)  [_]
                                                                 (b)  [_]

________________________________________________________________________________
3    SEC USE ONLY



________________________________________________________________________________
4    SOURCE OF FUNDS*


     WC
________________________________________________________________________________
5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) OR 2(e)                                   [_]



________________________________________________________________________________
6    CITIZENSHIP OR PLACE OF ORGANIZATION


     New York
________________________________________________________________________________
               7    SOLE VOTING POWER

  NUMBER OF
                    - 0 -
   SHARES      _________________________________________________________________
               8    SHARED VOTING POWER
BENEFICIALLY

  OWNED BY          - 0 -
               _________________________________________________________________
    EACH       9    SOLE DISPOSITIVE POWER

  REPORTING
                    - 0 -
   PERSON      _________________________________________________________________
               10   SHARED DISPOSITIVE POWER
    WITH

                    - 0 -
________________________________________________________________________________
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON


     - 0 -
________________________________________________________________________________
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*

                                                                      [_]

________________________________________________________________________________
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)


     0%
________________________________________________________________________________
14   TYPE OF REPORTING PERSON*


     CO
________________________________________________________________________________
                     *SEE INSTRUCTIONS BEFORE FILLING OUT!




CUSIP No. 277 84T 101                  13D                     Page 3 of 5 Pages

________________________________________________________________________________
Item 4.  Purpose of Transaction.

     As a result of a previous  restructuring of the Indebtedness (as defined on
AT&T's Form 13D/A,  filed March 6, 2003), AT&T previously owned 1,423,980 shares
of the Issuer's Class A Common Stock (the "Shares") plus immediately exercisable
warrants  (the  "Warrants")  to purchase an additional  1,000,000  shares of the
Issuer's  Class A Common  Stock at a price of $6.10 per share,  and a Promissory
Note of the Issuer in the stated  principal  amount of $10,000,000 (the "Note").
On February 27, 2003, AT&T and Ptek Holdings, Inc. ("Ptek") entered into a Share
Purchase  Agreement  regarding the sale of the Shares to Ptek for $825,908 and a
Note Purchase Agreement  regarding the transfer of the Note for $3,174,092 and a
warrant to purchase  shares of Ptek common stock.  Both Agreements were filed as
exhibits to the 13D/A-1 filed by AT&T on March 6, 2003.

     On August  28,  2003,  AT&T and Ptek  entered  into an  Amendment  to Share
Purchase   Agreement  and  Note  Purchase   Agreement   (the  "August  28,  2003
Amendment").  The  August  28,  2003  Amendment  modified  the  terms of the two
agreements  referred to in this Item 4 and dated as of February  27,  2003.  The
August 28, 2003  Amendment  was filed as an exhibit to the 13D/A-2 filed by AT&T
on August 28, 2003.

     On October 20, 2003 AT&T and Ptek consummated the transactions contemplated
by the August 28, 2003 Amendment.  In addition, on October 20, 2003 AT&T and the
Issuer      terminated      the      Warrants      as     of     such      date.
________________________________________________________________________________
Item 5. Interest in Securities of the Issuer.

(a) AT&T is the beneficial  owner of zero shares of capital stock of the Issuer.
To the knowledge of the Reporting Person, none of the persons listed on Schedule
I  hereto  beneficially  owns  any  shares  of  Class A  Common  Stock  or other
securities of the Issuer.

(b) Not Applicable

(c) Except as otherwise set forth herein,  neither the Reporting  Person nor, to
the knowledge of the Reporting Person,  any of the persons listed on Schedule I,
has executed transactions in the Common Stock during the past 60 days.

(d) Not Applicable

(e) The Reporting Person ceased to be the beneficial owner of the Shares and the
Warrants              on             October              20,              2003.
________________________________________________________________________________
Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to
Securities of the Issuer.

AT&T and the Issuer are parties to a Registration  Rights  Agreement dated as of
June 1, 2001,  with respect to the Shares.  AT&T and the Issuer are also parties
to an Accession  Agreement dated November 27, 2001.  Copies of these  Agreements
were filed as exhibits  to AT&T's  Form 13D filed with  respect to the Shares on
December 26, 2001.

AT&T and Ptek are  parties to a Share  Purchase  Agreement  with  respect to the
Shares,  as well as a Note Purchase  Agreement.  Both  Agreements  were filed as
exhibits to a 13D Amendment filed on March 6, 2003.

On August 28, 2003,  AT&T and Ptek  entered into the August 28, 2003  Amendment.
The August 28, 2003 Amendment modifies the terms of the Share Purchase Agreement
and the Note Purchase  Agreement.  The August 28, 2003 Amendment was filed as an
exhibit to the 13D/A-2 filed by AT&T on August 28, 2003.

________________________________________________________________________________
Item 7.  Material to be Filed as Exhibits.

1. Share Purchase  Agreement  between AT&T Corp.  and Ptek Holdings,  Inc. dated
February 27, 2003  (incorporated by reference to Exhibit 1 to AT&T's Form 13D/A,
filed March 6, 2003).

2. Note Purchase  Agreement  between AT&T Corp.  and Ptek  Holdings,  Inc. dated
February 27, 2003  (incorporated by reference to Exhibit 2 to AT&T's Form 13D/A,
filed March 6, 2003).

3. Amendment to Share  Purchase  Agreement and Note Purchase  Agreement  between
AT&T Corp.  and Ptek  Holdings,  Inc.  dated  August 28, 2003  (incorporated  by
reference to Exhibit 3 to AT&T's Form 13D/A-2, filed August 28, 2003).

4. Letter from AT&T Corp.  to Easylink  Services  Corporation,  dated August 28,
2003  (incorporated  by  reference  to Exhibit 4 to AT&T's Form  13D/A-2,  filed
August 28, 2003).

________________________________________________________________________________


CUSIP No. 277 84T 101                  13D                     Page 4 of 5 Pages


                                   SIGNATURE


     After  reasonable  inquiry and to the best of my  knowledge  and belief,  I
certify that the information  set forth in this statement is true,  complete and
correct.


                                                    October 24, 2003
                                        ----------------------------------------
                                                         (Date)


                                                  /s/  H. David Schwartz
                                        ----------------------------------------
                                                       (Signature)


                                                    Assistant Secretary
                                        ----------------------------------------
                                                       (Name/Title)



Attention. Intentional misstatements or omissions of fact constitute federal
criminal violations (see 18 U.S.C. 1001).



CUSIP No. 277 84T 101                  13D                     Page 5 of 5 Pages


                                   Schedule 1


David Dorman                    - Chairman and Chief Executive Officer
Betsy J. Bernard                - President
James W. Cicconi                - General Counsel and Executive Vice President -
                                    Law & Government Affairs
Nicholas S. Cyprus              - Vice President and Controller
Edward M. Dwyer                 - Vice President and Treasurer
Hossein Eslambolchi             - President - AT&T Labs & Chief Technology
                                    Officer
Robert S. Feit                  - Vice President - Law and Secretary
Mirian M. Graddick-Weir         - Executive Vice President - Human Resources
Thomas W. Horton                - Senior Executive Vice President and Chief
                                    Financial Officer
John Polumbo                    - President and CEO - AT&T Consumer
Constance K. Weaver             - Executive Vice President - Public Relations,
                                    Marketing and Brand




William F. Aldinger             - Director; Chairman and CEO, Household
                                    International, Inc.
Kenneth T. Derr                 - Director; Chairman of the Board, Retired -
                                    Chevron Texaco Corporation
M. Kathryn Eickhoff             - Director; President, Eickhoff Economics
                                    Incorporated
Frank C. Herringer              - Director; Chairman, Transamerica Corporation
Shirley A. Jackson              - Director; President, Rensselaer Polytechnic
                                    Institute
Jon C. Madonna                  - Director; Retired Chairman and CEO, KPMG
Donald F. McHenry               - Director; President, The IRC Group, LLC
Tony L. White                   - Director; Chairman, President and CEO, Applera
                                    Corporation