Email Parser error

My logs keep filling up with this error. Anyone know what could be causing
this? It does not seem to be affecting the runtime of RT. But, it is
generating this error sometimes multiple times a second, so it can’t be
good for the system

Aug 31 12:54:21 support RT: Encoding error: Unknown encoding ‘%CHARSET’ at
/usr/local/rt3/lib/RT/I18N.pm line
204 Stack: [/usr/lib/perl5/5.8.3/Carp.pm:191]
[/usr/lib/perl5/5.8.3/i386-linux-thread-multi/Encode.pm:177]
[/usr/local/rt3/lib/RT/I18N.pm:204] [/usr/local/rt3/lib/RT/I18N.pm:162]
[/usr/local/rt3/lib/RT/EmailParser.pm:268]
[/usr/local/rt3/lib/RT/EmailParser.pm:247]
[/usr/local/rt3/lib/RT/EmailParser.pm:211]
[/usr/local/rt3/lib/RT/Interface/Email.pm:437]
[/usr/local/rt3/share/html/REST/1.0/NoAuth/mail-gateway.html:31]
defaulting to ISO-8859-1 -> UTF-8 (/usr/local/rt3/lib/RT/I18N.pm:208)

Forrest Stanley
NetBurner Inc.
fstanley@netburner.com
858-558-0293 x204
"Networking in 1 Day!"
Find out how at http://www.netburner.com

My logs keep filling up with this error. Anyone know what could be causing
this? It does not seem to be affecting the runtime of RT. But, it is
generating this error sometimes multiple times a second, so it can’t be
good for the system

Aug 31 12:54:21 support RT: Encoding error: Unknown encoding ‘%CHARSET’ at
/usr/local/rt3/lib/RT/I18N.pm line
204 Stack: [/usr/lib/perl5/5.8.3/Carp.pm:191]
[/usr/lib/perl5/5.8.3/i386-linux-thread-multi/Encode.pm:177]
[/usr/local/rt3/lib/RT/I18N.pm:204] [/usr/local/rt3/lib/RT/I18N.pm:162]
[/usr/local/rt3/lib/RT/EmailParser.pm:268]
[/usr/local/rt3/lib/RT/EmailParser.pm:247]
[/usr/local/rt3/lib/RT/EmailParser.pm:211]
[/usr/local/rt3/lib/RT/Interface/Email.pm:437]
[/usr/local/rt3/share/html/REST/1.0/NoAuth/mail-gateway.html:31]
defaulting to ISO-8859-1 -> UTF-8 (/usr/local/rt3/lib/RT/I18N.pm:208)

Are you seeing multiple tickets per second created? The string
"%CHARSET" reminds me of malfunctioning spamware:

$ grep %CHARSET mail/caughtspam 
Content-Type: text/plain; charset=%CHARSET
Content-Type: text/html; charset=%CHARSET

… so it could be that you have some spammy tickets in your RT instance.

-- Niels.