Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
John Klensin, Ned Freed, Marshall T. Rose, Einar Stefferud, Dave Crocker. SMTP Service Extensions. RFC, 1869:1-11, November 1995. [doi]
Abstract is missing.