massive lmtpd troubles with cyrus-imap and postfix.

[Tobias Erbsland]

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Hello

I got problems with the LMTP daemon. I happened surprisedly without changes in 
out mailserver configuration. Mails sent to the lmtpd where rejected with 
curious errormessages:

Jul 10 15:04:16 mail01 postfix/lmtp[31717]: 909EE62252: 
to=<eh at mail01.solnet.ch>, relay=mail01.mlan.solnet.ch[212.101.1.98], delay=0, 
status=bounced (host mail01.mlan.solnet.ch[212.101.1.98] said: 501 5.5.4 
Unrecognized parameters (in reply to MAIL FROM command))

Jul 10 15:04:16 mail01 postfix/lmtp[31717]: 909EE62252: 
to=<te at mail01.solnet.ch>, relay=mail01.mlan.solnet.ch[212.101.1.98], delay=0, 
status=bounced (host mail01.mlan.solnet.ch[212.101.1.98] said: 501 5.5.4 
Unrecognized parameters (in reply to MAIL FROM command))

Jul 10 15:33:06 mail01 postfix/lmtp[34440]: 53DBE62235: 
to=<zmolnar at mail01.solnet.ch>, relay=mail01.mlan.solnet.ch[212.101.1.98], 
delay=0, status=deferred (SOFT BOUNCE - host 
mail01.mlan.solnet.ch[212.101.1.98] said: 501 5.5.4 Syntax error in 
parameters (in reply to MAIL FROM command))

i dumped the session with ngrep and got the following session:

T 212.101.1.98:2003 -> 212.101.1.119:2212 [AP]
  220 mail01.solnet.ch LMTP Cyrus v2.0.16 ready..
#
T 212.101.1.119:2212 -> 212.101.1.98:2003 [AP]
  LHLO mail03.solnet.ch..
#
T 212.101.1.98:2003 -> 212.101.1.119:2212 [AP]
  
250-mail01.solnet.ch..250-IGNOREQUOTA..250-8BITMIME..250-ENHANCEDSTATUSCODES..250-AUTH 
LOGIN PLAIN DIGEST-MD5 CRAM-MD5..250 PIPELINING
  ..
#
T 212.101.1.119:2212 -> 212.101.1.98:2003 [AP]
  AUTH PLAIN <hidden>..
#
T 212.101.1.98:2003 -> 212.101.1.119:2212 [AP]
  235 Authenticated!..
#
T 212.101.1.119:2212 -> 212.101.1.98:2003 [AP]
  MAIL FROM:<Claudio.Noro at azsbv.ch> SIZE=2737..
#
T 212.101.1.98:2003 -> 212.101.1.119:2212 [AP]
  501 5.5.4 Unrecognized parameters..
#
T 212.101.1.119:2212 -> 212.101.1.98:2003 [AP]
  RSET..


What's about this SIZE parameter after the MAIL FROM: ?
Is this a postfix error in this case?

regards
Tobias


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