Sieve writes an empty line in headers for reject/vacation
Hi, I have a Cyrus installation where Sieve writes an empty line into the header. Header and body of a mail are seperated by definition by a blank line. By submitting an extra blank line between Message-ID: and Date:, Sieve writes From:, Date:, Subject: etc. into the body of the mail. Server software is Cyrus 2.1.14 and Exim 3.36 on Linux. - Sieve script: #Mail filter rules for be #Generated by be using SmartSieve 0.5.1-devel 2003/07/19 12:32:41 require ["vacation"]; vacation :days 4 :addresses ["[EMAIL PROTECTED]"] text: junk . ; ##PSEUDO script start #vacation&&4&&"[EMAIL PROTECTED]"&&junk&&on #mode&&basic - autoreply mail: [...] Received: from cyrus by xxx with local (Exim 3.36 #2) id 19dp5R-Aj-00 for [EMAIL PROTECTED]; Sat, 19 Jul 2003 12:37:09 +0200 Message-ID: <[EMAIL PROTECTED]> Date: Sat, 19 Jul 2003 12:37:09 +0200 X-Sieve: CMU Sieve 2.2 From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Subject: Re: junk In-Reply-To: <[EMAIL PROTECTED]> Auto-Submitted: auto-replied (vacation) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Virus-Scanned: by AMaViS 0.3.12 junk
Re: Sieve writes an empty line in headers for reject/vacation
Bernhard Erdmann wrote: Hi, I have a Cyrus installation where Sieve writes an empty line into the header. Header and body of a mail are seperated by definition by a blank line. By submitting an extra blank line between Message-ID: and Date:, Sieve writes From:, Date:, Subject: etc. into the body of the mail. Server software is Cyrus 2.1.14 and Exim 3.36 on Linux. - Sieve script: #Mail filter rules for be #Generated by be using SmartSieve 0.5.1-devel 2003/07/19 12:32:41 require ["vacation"]; vacation :days 4 :addresses ["[EMAIL PROTECTED]"] text: junk . ; ##PSEUDO script start #vacation&&4&&"[EMAIL PROTECTED]"&&junk&&on #mode&&basic - autoreply mail: [...] Received: from cyrus by xxx with local (Exim 3.36 #2) id 19dp5R-Aj-00 for [EMAIL PROTECTED]; Sat, 19 Jul 2003 12:37:09 +0200 Message-ID: <[EMAIL PROTECTED]> Date: Sat, 19 Jul 2003 12:37:09 +0200 X-Sieve: CMU Sieve 2.2 From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Subject: Re: junk In-Reply-To: <[EMAIL PROTECTED]> Auto-Submitted: auto-replied (vacation) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Virus-Scanned: by AMaViS 0.3.12 I'm not convinced that this is being caused by Cyrus. Here a snippit of the code which produces the vacation response. As you can see, there is no extra CRLF after the Message-ID (or before Date). t = time(NULL); p = getpid(); snprintf(outmsgid, sizeof(outmsgid), "<[EMAIL PROTECTED]>", (int) p, (int) t, global_outgoing_count++, config_servername); fprintf(sm, "Message-ID: %s\r\n", outmsgid); rfc822date_gen(datestr, sizeof(datestr), t); fprintf(sm, "Date: %s\r\n", datestr); fprintf(sm, "X-Sieve: %s\r\n", SIEVE_VERSION); fprintf(sm, "From: <%s>\r\n", src->fromaddr); fprintf(sm, "To: <%s>\r\n", src->addr); -- Kenneth Murchison Oceana Matrix Ltd. Software Engineer 21 Princeton Place 716-662-8973 x26 Orchard Park, NY 14127 --PGP Public Key--http://www.oceana.com/~ken/ksm.pgp
Re: Sieve writes an empty line in headers for reject/vacation
I'm not convinced that this is being caused by Cyrus. Here a snippit of the code which produces the vacation response. As you can see, there is no extra CRLF after the Message-ID (or before Date). t = time(NULL); p = getpid(); snprintf(outmsgid, sizeof(outmsgid), "<[EMAIL PROTECTED]>", (int) p, (int) t, global_outgoing_count++, config_servername); fprintf(sm, "Message-ID: %s\r\n", outmsgid); rfc822date_gen(datestr, sizeof(datestr), t); fprintf(sm, "Date: %s\r\n", datestr); Hi Ken, if datestr should begin with crlf or if outmsgid should end with crlf, there would be the possibility of an extra blank line. Regards Bernie
Re: Sieve writes an empty line in headers for reject/vacation
I'm not convinced that this is being caused by Cyrus. Here a snippit of the code which produces the vacation response. As you can see, there is no extra CRLF after the Message-ID (or before Date). You're right. I generated a bounce message using sieve. Exim was configured not to deliver any mail, so I could watch the bounce's header lines in Exim's spool. This is the output of "exim -Mvh 19dvc2-lu-00" (show header of mail).: start 19dvc2-lu-00-H cyrus 76 12 <> 1058636114 0 -ident cyrus -received_protocol local -body_linecount 46 XX 1 [EMAIL PROTECTED] 141P Received: from cyrus by ente.berdmann.de with local (Exim 3.36 #1) id 19dvc2-lu-00 for [EMAIL PROTECTED]; Sat, 19 Jul 2003 19:35:14 +0200 060I Message-ID: <[EMAIL PROTECTED]> 039 Date: Sat, 19 Jul 2003 19:35:14 +0200 024 X-Sieve: CMU Sieve 2.2 041* From: Mail Sieve Subsystem 053F From: Mail Sieve Subsystem <[EMAIL PROTECTED]> 022T To: <[EMAIL PROTECTED]> 019 MIME-Version: 1.0 106 Content-Type: multipart/report; report-type=disposition-notification; boundary="2906/ente.berdmann.de" 038 Subject: Automatically rejected mail 041 Auto-Submitted: auto-replied (rejected) - end - Very interesting is the line termination. 14 lines end on LF (\n, 0x0a) and starting with "060I Message-ID" the lines terminate with CRLF (\r\n, 0x0d 0x0a). After having delivered this mail into a cyrus box, there was an extra blank line between Message-ID: and Date: So it doesn't seem to be Sieve's failure when generating the bounce mail. But someone else adds an extra line. Return-Path: <> Received: from ente.berdmann.de ([unix socket]) by ente.berdmann.de (Cyrus v2.1.13) with LMTP; Sat, 19 Jul 2003 19:41:22 +0200 X-Sieve: CMU Sieve 2.2 Received: from cyrus by ente.berdmann.de with local (Exim 3.36 #1) id 19dvc2-lu-00 for [EMAIL PROTECTED]; Sat, 19 Jul 2003 19:35:14 +0200 Message-ID: <[EMAIL PROTECTED]> Date: Sat, 19 Jul 2003 19:35:14 +0200 X-Sieve: CMU Sieve 2.2 From: Mail Sieve Subsystem <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> MIME-Version: 1.0 Content-Type: multipart/report; report-type=disposition-notification; boundary="2906/ente.berdmann.de" Subject: Automatically rejected mail Auto-Submitted: auto-replied (rejected) [...]
Re: Sieve writes an empty line in headers for reject/vacation
Bernhard Erdmann wrote: I'm not convinced that this is being caused by Cyrus. Here a snippit of the code which produces the vacation response. As you can see, there is no extra CRLF after the Message-ID (or before Date). t = time(NULL); p = getpid(); snprintf(outmsgid, sizeof(outmsgid), "<[EMAIL PROTECTED]>", (int) p, (int) t, global_outgoing_count++, config_servername); fprintf(sm, "Message-ID: %s\r\n", outmsgid); rfc822date_gen(datestr, sizeof(datestr), t); fprintf(sm, "Date: %s\r\n", datestr); Hi Ken, if datestr should begin with crlf or if outmsgid should end with crlf, there would be the possibility of an extra blank line. It doesn't matter if datestr starts with CRLF, since "Date:" is in front of it. outmsgid clearly ends with ">". -- Kenneth Murchison Oceana Matrix Ltd. Software Engineer 21 Princeton Place 716-662-8973 x26 Orchard Park, NY 14127 --PGP Public Key--http://www.oceana.com/~ken/ksm.pgp
Re: Sieve writes an empty line in headers for reject/vacation
I'm not convinced that this is being caused by Cyrus. Here a snippit of the code which produces the vacation response. As you can see, there is no extra CRLF after the Message-ID (or before Date). I further tracked down the empty line. Seems like something is going wrong with the line termination. I configured Exim to deliver using LMTP over TCP/IP instead of using a socket: -- exim.conf: local_lmtp: driver = smtp protocol = lmtp service = lmtp hosts = localhost hosts_override gethostbyname allow_localhost -- cyrus.conf: lmtp cmd="lmtpd -a" listen="lmtp" prefork=0 # lmtpunix cmd="lmtpd" listen="/var/imap/socket/lmtp" prefork=0 Then I attached tcpdump/ethereal to the loopback interface. The communication between Exim and Cyrus is shown below. The lines up to and including "Received: ... +0200" are terminated using \r\n. The following lines are terminated using \r\r\n. 220 ente.berdmann.de LMTP Cyrus v2.1.13 ready LHLO ente.berdmann.de 250-ente.berdmann.de 250-8BITMIME 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-SIZE 250-AUTH EXTERNAL 250 IGNOREQUOTA MAIL FROM:<> SIZE=3054 RCPT TO:<[EMAIL PROTECTED]> DATA 250 2.1.0 ok 250 2.1.5 ok 354 go ahead Received: from cyrus by ente.berdmann.de with local (Exim 3.36 #1) id 19dwYQ-uw-00 for [EMAIL PROTECTED]; Sat, 19 Jul 2003 20:35:34 +0200 Message-ID: <[EMAIL PROTECTED]> Date: Sat, 19 Jul 2003 20:35:34 +0200 X-Sieve: CMU Sieve 2.2 From: Mail Sieve Subsystem <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> MIME-Version: 1.0 Content-Type: multipart/report; report-type=disposition-notification; boundary="3529/ente.berdmann.de" Subject: Automatically rejected mail Auto-Submitted: auto-replied (rejected) [...]
