% Datatracker information for RFCs on the Legacy Stream is unfortunately often % incorrect. Please correct the bibtex below based on the information in the % actual RFC at https://rfc-editor.org/rfc/rfc1047.txt @misc{rfc1047, series = {Request for Comments}, number = 1047, howpublished = {RFC 1047}, publisher = {RFC Editor}, doi = {10.17487/RFC1047}, url = {https://www.rfc-editor.org/info/rfc1047}, author = {}, title = {{Duplicate messages and SMTP}}, pagetotal = 3, year = 1988, month = feb, abstract = {An examination of a synchronization problem in the Simple Mail Transfer Protocol (SMTP) is presented. This synchronization problem can cause a message to be delivered multiple times. A method for avoiding this problem is suggested. Nodding familiarity with the SMTP specification, RFC-821, is required.}, }