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SIEVE Alexey Melnikov Cyrus Daboo

SIEVE Alexey Melnikov Cyrus Daboo. What is SIEVE?. SIEVE is a Mail Filtering Language. Usually runs in SMTP (LMTP) servers or MUAs. Multiple implementations: Server side, like Exim, Cyrus/Isode, Sun, Sendmail. User agents like Mulberry, Polymer, Ingo (web)

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SIEVE Alexey Melnikov Cyrus Daboo

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  1. SIEVEAlexey MelnikovCyrus Daboo Sieve Mail Filtering Language WG (sieve)

  2. What is SIEVE? • SIEVE is a Mail Filtering Language. • Usually runs in SMTP (LMTP) servers or MUAs. • Multiple implementations: • Server side, like Exim, Cyrus/Isode, Sun, Sendmail. • User agents like Mulberry, Polymer, Ingo (web) • IETF SIEVE WG:http://www.ietf.org/html.charters/sieve-charter.html Sieve Mail Filtering Language WG (sieve)

  3. What can SIEVE do right now (Sieve "tests") • Can examine • header fields, addresses • SMTP envelope (if available) • message body (draft-ietf-sieve-body-02.txt) • spam scores and viruses (draft-ietf-sieve-spamtestbis-01.txt) – done externally • SIEVE now has support for variables (draft-ietf-sieve-variables-06.txt) Sieve Mail Filtering Language WG (sieve)

  4. What can SIEVE do right now (Sieve "actions") • Sieve scripts can edit headers (draft-ietf-sieve-editheader-02.txt) • Sieve scripts c an set IMAP flags (draft-ietf-sieve-imapflags-01.txt) • The received message can be • filed into an IMAP mailbox • discarded/rejected • redirected to another address • send vacation replies (draft-ietf-sieve-vacation-03.txt) Sieve Mail Filtering Language WG (sieve)

  5. Application to Lemonade: Customizable notifications • draft-ietf-sieve-notify-00.txt: require ["notify", "fileinto", "variables"]; if header :contains "to" "sievemailinglist@example.org" { # :matches is used to get the value of the Subject header if header :matches "Subject" "*" { set "subject" "${1}"; } # :matches is used to get the value of the From header if header :matches "From" "*" { set "from" "${1}"; } notify :low :message "[SIEVE] ${from}: ${subject}"; fileinto "INBOX.sieve"; } Sieve Mail Filtering Language WG (sieve)

  6. Application to Lemonade: Mailbox annotations require ["notify", "mboxannotate", "variables", "envelope"]; if not annotation :private "INBOX" :matches "/vendor/isode/notification-uri“ "none" { set "notif_uri" "${0}"; # :matches is used to get the MAIL FROM address if envelope :all :matches "from" "*" { set "env_from" " [really: ${1}]"; } # :matches is used to get the value of the Subject header if header :matches "Subject" "*" {set "subject" "${1}";} # :matches is used to get the address from the From headerif address :matches :all "from" "*" {set "from_addr" "${1}";} notify :method "${notif_uri}":message "${from_addr}${env_from}: ${subject}";} Sieve Mail Filtering Language WG (sieve)

  7. SIEVE script management/generation • SIEVE scripts can be managed using manage sieve protocol (draft-martin-managesieve-xx.txt). • SIEVE generation can be hidden behind simple UI • managing it from a small device becomes simple Sieve Mail Filtering Language WG (sieve)

  8. Future work • Creation of a SIEVE profile to work on IMAP flag changes/message deletion. Sieve Mail Filtering Language WG (sieve)

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