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Current Architecture. Outside world. NNTP. CYRUS.ANDREW.CMU.EDU. ANDREW.CMU.EDU. SMTP. SMTP. IMAP. SMTP. SMTP. SMTP.ANDREW.CMU.EDU. Mail Clients. SMTP. Future Architecture. Outside world. NNTP. LMTP. CYRUS.ANDREW.CMU.EDU. Back-end servers. IMAP GATEWAY. IMAP. ANDREW.CMU.EDU.
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Current Architecture Outside world NNTP CYRUS.ANDREW.CMU.EDU ANDREW.CMU.EDU SMTP SMTP IMAP SMTP SMTP SMTP.ANDREW.CMU.EDU Mail Clients SMTP
Future Architecture Outside world NNTP LMTP CYRUS.ANDREW.CMU.EDU Back-end servers IMAP GATEWAY IMAP ANDREW.CMU.EDU ACAP Servers SMTP IMAP LMTP LMTP Front end proxies sieve SMTP.ANDREW.CMU.EDU SMTP LMTP Mail Clients IMAP LDAP.ANDREW.CMU.EDU SMTP
Animation Outside world NNTP LMTP CYRUS.ANDREW.CMU.EDU Back-end servers IMAP GATEWAY IMAP ANDREW.CMU.EDU ACAP Servers SMTP IMAP LMTP LMTP Front end proxies SMTP.ANDREW.CMU.EDU SMTP LMTP Mail Clients IMAP SMTP