[Bug 982555] [NEW] LMTP should reject unknown lists in RCPT-stage

Bernhard Schmidt berni at birkenwald.de
Sun Apr 15 21:51:06 CEST 2012

Public bug reported:

At the moment the LMTP runner rejects mails to non-existing lists after
the DATA stage.

# telnet localhost 8024
Connected to localhost.
Escape character is '^]'.
220 mail.svr02.mucip.net Python LMTP runner 1.0
MAIL FROM: <berni at birkenwald.de>
250 Ok
RCPT TO: <thislistdoesnotexist at birkenwald.de>
250 Ok
354 End data with <CR><LF>.<CR><LF>
Message-ID: <bal at blubb.de>

550 Requested action not taken: mailbox unavailable

It should reject invalid addresses in the RCPT TO stage, this way it
could easily be used with Postfix' feature "reject_unverified_recipient"
to avoid accepting and then bouncing messages.

** Affects: mailman
     Importance: Undecided
         Status: New

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  LMTP should reject unknown lists in RCPT-stage

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