%% You should probably cite rfc1891 instead of this I-D. @techreport{ietf-notary-smtp-drpt-05, number = {draft-ietf-notary-smtp-drpt-05}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-notary-smtp-drpt/05/}, author = {Keith Moore}, title = {{SMTP Service Extension for Delivery Status Notifications}}, pagetotal = 31, year = 1995, month = jun, day = 21, abstract = {This memo defines an extension to the SMTP service, which allows an SMTP client to specify (a) that delivery status notifications (DSNs) should be generated under certain conditions, (b) whether such notifications should return the contents of the message, and (c) additional information, to be returned with a DSN, that allows the sender to identify both the recipient(s) for which the DSN was issued, and the transaction in which the original message was sent. {[}STANDARDS-TRACK{]}}, }