SMTPAppender - Email not formatted properly when log message contains double linebreak
Hi, when I a log message with a double linebreak "A\n\nA" to SMTPAppender, the resulting Email is not formatted properly. The MIME parts are not parsed but are display as the message body. It looks like the double linebreak is written directly into the Subject-Header. With a single linebreak I get the same problem in Gmail. In Outlook the email is formatted properly, only the subject is cut at the linebreak. Could this be a bug in Logback? Regards, Arend Logging call: LoggerFactory.getLogger(Main.class).error("A\n\nA"); logback.xml: <configuration> <root> <appender class="ch.qos.logback.classic.net.SMTPAppender"> <smtpHost>... smtpHost</smtpHost> <to>... email</to> <subject>%logger{10} - %message</subject> <layout class="ch.qos.logback.classic.PatternLayout"> <pattern>%logger{10} - %message</pattern> </layout> </appender> </root> </configuration> Email subject: c.e.l.Main - A Visible email body: A MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_0_14393847.1372070958822" ------=_Part_0_14393847.1372070958822 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit c.e.l.Main - A A ------=_Part_0_14393847.1372070958822-- Email source: ... email headers To: ... Message-ID: ... Subject: c.e.l.Main - A A MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_0_14393847.1372070958822" ------=_Part_0_14393847.1372070958822 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit c.e.l.Main - A A ------=_Part_0_14393847.1372070958822--
The stmp standard dictates that a header field is terminated by a new line. An empty line terminates the list of header fields. The relevante info is in 3.1.3 of the 822 RC, I guess: 3.1.3. UNSTRUCTURED FIELD BODIES For some fields, such as "Subject" and "Comments", no struc- turing is assumed, and they are treated simply as <text>s, as in the message body. Rules of folding apply to these fields, so that such field bodies which occupy several lines must therefore have the second and successive lines indented by at least one LWSP-char. So, it looks like a bug in the SMTP appender or some software it uses. Regards Mads Mandag 24 juni 2013 13:00:46 skrev Arend v. Reinersdorff: Hi, when I a log message with a double linebreak "A\n\nA" to SMTPAppender, the resulting Email is not formatted properly. The MIME parts are not parsed but are display as the message body. It looks like the double linebreak is written directly into the Subject-Header. With a single linebreak I get the same problem in Gmail. In Outlook the email is formatted properly, only the subject is cut at the linebreak. Could this be a bug in Logback? Regards,Arend Logging call:LoggerFactory.getLogger(Main.class).error("A\n\nA"); logback.xml:<configuration> <root> <appender class="ch.qos.logback.classic.net.SMTPAppender"> <smtpHost>... smtpHost</smtpHost> <to>... email</to> <subject>%logger{10} - %message</subject> <layout class="ch.qos.logback.classic.PatternLayout"> <pattern>%logger{10} - %message</pattern> </layout> </appender> </root></configuration> Email subject:c.e.l.Main - A Visible email body: AMIME-Version: 1.0Content-Type: multipart/mixed; boundary="----=_Part_0_14393847.1372070958822" ------=_Part_0_14393847.1372070958822Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 7bit c.e.l.Main - AA------=_Part_0_14393847.1372070958822-- Email source: ... email headers To: ...Message-ID: ...Subject: c.e.l.Main - A AMIME-Version: 1.0Content-Type: multipart/mixed; boundary="----=_Part_0_14393847.1372070958822" ------=_Part_0_14393847.1372070958822Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 7bit c.e.l.Main - AA------=_Part_0_14393847.1372070958822-- -- Med venlig hilsen/Regards Chefarkitekt/Chief Architect cand.scient.dat, Ph.d., Mads Bondo Dydensborg Dansk BiblioteksCenter A/S, Tempovej 7-11, 2750 Ballerup, Tlf. +45 29 84 00 42
There's an existing JIRA issue on this: http://jira.qos.ch/browse/LOGBACK-865 On Mon, Jun 24, 2013 at 9:31 AM, Mads Bondo Dydensborg <mbd@dbc.dk> wrote:
**
The stmp standard dictates that a header field is terminated by a new line. An empty line terminates the list of header fields.
The relevante info is in 3.1.3 of the 822 RC, I guess:
3.1.3. UNSTRUCTURED FIELD BODIES
For some fields, such as "Subject" and "Comments", no struc-
turing is assumed, and they are treated simply as <text>s, as
in the message body. Rules of folding apply to these fields,
so that such field bodies which occupy several lines must
therefore have the second and successive lines indented by at
least one LWSP-char.
So, it looks like a bug in the SMTP appender or some software it uses.
Regards
Mads
Mandag 24 juni 2013 13:00:46 skrev Arend v. Reinersdorff:
Hi,
when I a log message with a double linebreak "A\n\nA" to SMTPAppender, the resulting Email is not formatted properly.
The MIME parts are not parsed but are display as the message body. It looks like the double linebreak is written directly into the Subject-Header.
With a single linebreak I get the same problem in Gmail. In Outlook the email is formatted properly, only the subject is cut at the linebreak.
Could this be a bug in Logback?
Regards, Arend
Logging call: LoggerFactory.getLogger(Main.class).error("A\n\nA");
logback.xml: <configuration> <root> <appender class="ch.qos.logback.classic.net.SMTPAppender"> <smtpHost>... smtpHost</smtpHost> <to>... email</to> <subject>%logger{10} - %message</subject> <layout class="ch.qos.logback.classic.PatternLayout"> <pattern>%logger{10} - %message</pattern> </layout> </appender> </root> </configuration>
Email subject: c.e.l.Main - A
Visible email body:
A MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_0_14393847.1372070958822"
------=_Part_0_14393847.1372070958822 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit
c.e.l.Main - A A ------=_Part_0_14393847.1372070958822--
Email source:
... email headers
To: ... Message-ID: ... Subject: c.e.l.Main - A
A MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_0_14393847.1372070958822"
------=_Part_0_14393847.1372070958822 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit
c.e.l.Main - A A ------=_Part_0_14393847.1372070958822--
--
Med venlig hilsen/Regards
Chefarkitekt/Chief Architect cand.scient.dat, Ph.d., Mads Bondo Dydensborg
Dansk BiblioteksCenter A/S, Tempovej 7-11, 2750 Ballerup, Tlf. +45 29 84 00 42
_______________________________________________ Logback-user mailing list Logback-user@qos.ch http://mailman.qos.ch/mailman/listinfo/logback-user
Thanks a lot :-) I missed that issue. Regards, Arend On Mon, Jun 24, 2013 at 4:33 PM, Abraham Lin <abraham.lin@post.harvard.edu>wrote:
There's an existing JIRA issue on this: http://jira.qos.ch/browse/LOGBACK-865
On Mon, Jun 24, 2013 at 9:31 AM, Mads Bondo Dydensborg <mbd@dbc.dk> wrote:
**
The stmp standard dictates that a header field is terminated by a new line. An empty line terminates the list of header fields.
The relevante info is in 3.1.3 of the 822 RC, I guess:
3.1.3. UNSTRUCTURED FIELD BODIES
For some fields, such as "Subject" and "Comments", no struc-
turing is assumed, and they are treated simply as <text>s, as
in the message body. Rules of folding apply to these fields,
so that such field bodies which occupy several lines must
therefore have the second and successive lines indented by at
least one LWSP-char.
So, it looks like a bug in the SMTP appender or some software it uses.
Regards
Mads
Mandag 24 juni 2013 13:00:46 skrev Arend v. Reinersdorff:
Hi,
when I a log message with a double linebreak "A\n\nA" to SMTPAppender, the resulting Email is not formatted properly.
The MIME parts are not parsed but are display as the message body. It looks like the double linebreak is written directly into the Subject-Header.
With a single linebreak I get the same problem in Gmail. In Outlook the email is formatted properly, only the subject is cut at the linebreak.
Could this be a bug in Logback?
Regards, Arend
Logging call: LoggerFactory.getLogger(Main.class).error("A\n\nA");
logback.xml: <configuration> <root> <appender class="ch.qos.logback.classic.net.SMTPAppender"> <smtpHost>... smtpHost</smtpHost> <to>... email</to> <subject>%logger{10} - %message</subject> <layout class="ch.qos.logback.classic.PatternLayout"> <pattern>%logger{10} - %message</pattern> </layout> </appender> </root> </configuration>
Email subject: c.e.l.Main - A
Visible email body:
A MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_0_14393847.1372070958822"
------=_Part_0_14393847.1372070958822 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit
c.e.l.Main - A A ------=_Part_0_14393847.1372070958822--
Email source:
... email headers
To: ... Message-ID: ... Subject: c.e.l.Main - A
A MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_0_14393847.1372070958822"
------=_Part_0_14393847.1372070958822 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit
c.e.l.Main - A A ------=_Part_0_14393847.1372070958822--
--
Med venlig hilsen/Regards
Chefarkitekt/Chief Architect cand.scient.dat, Ph.d., Mads Bondo Dydensborg
Dansk BiblioteksCenter A/S, Tempovej 7-11, 2750 Ballerup, Tlf. +45 29 84 00 42
_______________________________________________ Logback-user mailing list Logback-user@qos.ch http://mailman.qos.ch/mailman/listinfo/logback-user
_______________________________________________ Logback-user mailing list Logback-user@qos.ch http://mailman.qos.ch/mailman/listinfo/logback-user
Pull-requests welcome! David On 25 Jun 2013, at 07:43, "Arend v. Reinersdorff" <arend@arendvr.com> wrote:
Thanks a lot :-) I missed that issue.
Regards, Arend
On Mon, Jun 24, 2013 at 4:33 PM, Abraham Lin <abraham.lin@post.harvard.edu> wrote:
There's an existing JIRA issue on this: http://jira.qos.ch/browse/LOGBACK-865
On Mon, Jun 24, 2013 at 9:31 AM, Mads Bondo Dydensborg <mbd@dbc.dk> wrote:
The stmp standard dictates that a header field is terminated by a new line. An empty line terminates the list of header fields.
The relevante info is in 3.1.3 of the 822 RC, I guess:
3.1.3. UNSTRUCTURED FIELD BODIES
For some fields, such as "Subject" and "Comments", no struc- turing is assumed, and they are treated simply as <text>s, as in the message body. Rules of folding apply to these fields, so that such field bodies which occupy several lines must therefore have the second and successive lines indented by at least one LWSP-char.
So, it looks like a bug in the SMTP appender or some software it uses.
Regards
Mads
Mandag 24 juni 2013 13:00:46 skrev Arend v. Reinersdorff: Hi,
when I a log message with a double linebreak "A\n\nA" to SMTPAppender, the resulting Email is not formatted properly.
The MIME parts are not parsed but are display as the message body. It looks like the double linebreak is written directly into the Subject-Header.
With a single linebreak I get the same problem in Gmail. In Outlook the email is formatted properly, only the subject is cut at the linebreak.
Could this be a bug in Logback?
Regards, Arend
Logging call: LoggerFactory.getLogger(Main.class).error("A\n\nA");
logback.xml: <configuration> <root> <appender class="ch.qos.logback.classic.net.SMTPAppender"> <smtpHost>... smtpHost</smtpHost> <to>... email</to> <subject>%logger{10} - %message</subject> <layout class="ch.qos.logback.classic.PatternLayout"> <pattern>%logger{10} - %message</pattern> </layout> </appender> </root> </configuration>
Email subject: c.e.l.Main - A
Visible email body: A MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_0_14393847.1372070958822"
------=_Part_0_14393847.1372070958822 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit
c.e.l.Main - A A ------=_Part_0_14393847.1372070958822--
Email source: ... email headers To: ... Message-ID: ... Subject: c.e.l.Main - A
A MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_0_14393847.1372070958822"
------=_Part_0_14393847.1372070958822 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit
c.e.l.Main - A A ------=_Part_0_14393847.1372070958822--
-- Med venlig hilsen/Regards
Chefarkitekt/Chief Architect cand.scient.dat, Ph.d., Mads Bondo Dydensborg Dansk BiblioteksCenter A/S, Tempovej 7-11, 2750 Ballerup, Tlf. +45 29 84 00 42
_______________________________________________ Logback-user mailing list Logback-user@qos.ch http://mailman.qos.ch/mailman/listinfo/logback-user
_______________________________________________ Logback-user mailing list Logback-user@qos.ch http://mailman.qos.ch/mailman/listinfo/logback-user
_______________________________________________ Logback-user mailing list Logback-user@qos.ch http://mailman.qos.ch/mailman/listinfo/logback-user
participants (4)
-
Abraham Lin -
Arend v. Reinersdorff -
David Roussel -
Mads Bondo Dydensborg