text: IETF deals Microsoft #39;s e-mail proposal a setback A proposed technology for identifying the source of e-mail messages suffered a blow last week when a group within the IETF established to study the proposal sent it back for more work, citing concerns over vague intellectual property claims made by 
inputs: IETF deals Microsoft #39;s e-mail proposal a setback A proposed technology for identifying the source of e-mail messages suffered a blow last week when a group within the IETF established to study the proposal sent it back for more work, citing concerns over vague intellectual property claims made by 