Hi there, I had to scrap the filters and go with the evaluator as you had recommended: <appender name="SQL_TRANSACTION_DELAY_EMAIL" class="ch.qos.logback.classic.net.SMTPAppender"> <evaluator class="ch.qos.logback.classic.boolex.JaninoEventEvaluator"> <expression> return event.getLevel().equals(Level.WARN) && event.getMessage().contains("running time (millis)"); </expression> </evaluator> .... <layout class="ch.qos.logback.classic.PatternLayout"> <pattern>%date {%thread} [%X{id}] [%-5level] %class.%method - %message%n</pattern> </layout> </appender> Thanks again for your help. Ray. -- View this message in context: http://logback.10977.n7.nabble.com/SMTPAppender-with-multiple-filters-tp1186... Sent from the Users mailing list archive at Nabble.com.