Unfortunately even I will not be able to confirm this, as I am working on a
machine which has .net 4.5.
From: Dominik Psenner <[email protected]>
To: Mohkam Singh Sawhney <[email protected]>
Cc: Log4NET User <[email protected]>
Sent: Tuesday, November 14, 2017 1:24 PM
Subject: Re: Log4Net v2.0.8 - SMTP appender not relaying emails on Windows
Server 2003
log4net should not even compile if it referenced classes that do not exist in a
targetted framework. Note that this might be related to
https://issues.apache.org/jira/browse/LOG4NET-548 too. This could be a symptom
of the fact that net 4.5 is a in place replacement of net 4.0. You should be
able to confirm this if you tried to compile log4net on a machine that has only
net 4.0 installed. Unfortunately i have no possibility to evaluate this because
I have no operating system to evaluate this on.
On 13 Nov 2017 5:58 p.m., "Mohkam Singh Sawhney" <[email protected]> wrote:
Hi Dominik,
I reviewed the accepted answer on the link that you shared.
Our application is a console application that was compiled against .net
framework 4. We are using the framework 4.0 version of the log4net dll.
Windows server 2003 does not support .net framework 4.5.
ClaimsIdentity Class was introduced in framework 4.5.
(https://msdn.microsoft.com/ en-us/library/system.security.
claims.claimsidentity.aspx). Why is the log4net dll referencing this class?
Thanks and Regards
Mohkam Singh
From: Dominik Psenner <[email protected]>
To: Log4NET User <[email protected]. org>; Mohkam Singh Sawhney
<[email protected]>
Sent: Monday, November 13, 2017 12:16 AM
Subject: Re: Log4Net v2.0.8 - SMTP appender not relaying emails on Windows
Server 2003
Googling yields this:
https://social.msdn.microsoft. com/Forums/en-US/378905e5-
297b-4235-a170-f519d77f02b9/ iis7-web-app-error-could-not- load-type-
systemsecurityclaimsclaimsiden tity-from-assembly?forum= csharpgeneral
On 12 Nov 2017 11:36 a.m., "Mohkam Singh Sawhney" <[email protected]> wrote:
We were using Log4Net v1.2.13.0 with an application that targets .net framework
4 on windows server 2003, Below is the SmptAppender configuration (hiding our
production values with xxxx). We were able to receive email on 'FATAL' log
entry.
<appender name="SmtpAppender" type="log4net.Appender. SmtpAppender">
<to value="xxxx" /> <from value="xxxx" /> <subject
type="log4net.Util. PatternString" value="xxxx" /> <smtpHost value="xxxx"
/> <username value="xxxx" /> <password value="xxxx" />
<authentication value="Basic" /><bufferSize value="5" /><lossy value="true"
/><evaluator type="log4net.Core. LevelEvaluator"> <threshold
value="FATAL" /> </evaluator><layout type="log4net.Layout. PatternLayout">
<conversionPattern value="%newline%date %-5level [%logger]
%message%newline%exception% newline" /> </layout> </appender>
We recently updated our application to use Log4Net v2.0.8, with the same
configuration for SmptAppender . After this update, we stopped receiving
emails. On enabling the internal log4Net logging, the below error was logged.
log4net: Created Appender [SmtpAppender]log4net: Adding appender named
[SmtpAppender] to logger [root].log4net: Hierarchy Threshold []log4net:ERROR
[SmtpAppender] ErrorCode: GenericFailure. Failed in
DoAppendSystem.TypeLoadException: Could not load type 'System.Security.Claims.
ClaimsIdentity' from assembly 'mscorlib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken= b77a5c561934e089'. at log4net.Core.LoggingEvent.get_
UserName() at log4net.Core.LoggingEvent. FixVolatileData(FixFlags flags) in
c:\log4net\tags\2.0.8RC1\src\ Core\LoggingEvent.cs:line 1341 at
log4net.Appender. BufferingAppenderSkeleton. Append(LoggingEvent loggingEvent)
in c:\log4net\tags\2.0.8RC1\src\ Appender\ BufferingAppenderSkeleton.cs: line
483 at log4net.Appender. AppenderSkeleton.DoAppend( LoggingEvent
loggingEvent) in c:\log4net\tags\2.0.8RC1\src\ Appender\AppenderSkeleton.cs:
line 317log4net: Shutdown called on Hierarchy [log4net-default-repository]
If we revert back to Log4Net v1.2.13.0, we start receiving emails as expected.
Please advise how can we resolve the issue with version 2.0.8.
Thanks and Regards
Mohkam Singh
