Autor: David Woodhouse Data: A: Exim users list Assumpte: [Exim] SMTP protocol violation complaint -- false positives.
If I enable log_selector = +smtp_protocol_error I get false positives
when PIPELINING is enabled:
2003-12-12 13:39:56 H=(humbolt.nl.linux.org) [2002:83d3:1c30::1] F=<test1@???> temporarily rejected RCPT <dwmw2@???>: Could not complete sender verify
2003-12-12 13:39:56 SMTP protocol error in "DATA" H=(humbolt.nl.linux.org) [2002:83d3:1c30::1] valid RCPT command must precede DATA
Note that since the client sent the 'RCPT TO:' and DATA' lines in a
single group, as permitted by RFC2920, it had no way of knowing that the
RCPT TO was going to be rejected. It is not at fault, and is behaving
perfectly correctly.