[jira] [Commented] (LOG4J2-236) SMTPAppender does not interpolate variables

["Thomas Golden (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LOG4J2-236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13647875#comment-13647875 ] 

Thomas Golden commented on LOG4J2-236:
--------------------------------------

Looking through the source, I see that the variable _ought_ to be substituted, but that the result of lookups.get("env") on line 101 in Interpolator returns null. It seems that the other resolvers have not been registered at this point.
                
> SMTPAppender does not interpolate variables
> -------------------------------------------
>
>                 Key: LOG4J2-236
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-236
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: Appenders
>    Affects Versions: 2.0-beta5
>         Environment: OS X 10.7 Lion (11.4.2 Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64 x86_64)
>            Reporter: Thomas Golden
>
> When configuring an SMTP appender as follows, I would expect the smtpHost property to be interpolated, and the appropriate environment variable substituted:
> <SMTP name="Mailer" subject="Error" to="test@test.com" from="do-not-reply@test.com"
>             smtpHost="${env:SMTP_HOST}" smtpPort="25" bufferSize="1"></SMTP>
> Instead, Log4J complains that the host ${env:SMTP_HOST} is unknown.
> The documentation does not state that these variables cannot be interpolated, so from reading the manual I would assume this is a bug and not, in fact, by design.

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