During startup of 1.2.1 I get bunch of exception, mostly related to logging and not serious. However this one is slightly more concerning:

20:45:55,088 INFO com.atlassian.crowd.startup: Starting Crowd, Version: 1.2.1 (Build:#192 - Dec 10, 2007)
20:45:57,512 INFO integration.service.soap.client.GenericClient: Loading properties file crowd.properties from file:/opt/j2ee/domains/atlassian.com/extranet-crowd/webapps/crowd/deployments/crowd-webapp-200712122039/WEB-INF/classes/crowd.properties
20:45:58,877 ERROR atlassian.crowd.manager.event.EventManagerGeneric: Event listener failed.
com.atlassian.crowd.event.EventJobExecutionException: Illegal address
at com.atlassian.crowd.event.ResetPasswordEvent.execute(ResetPasswordEvent.java:186)
at com.atlassian.crowd.manager.event.EventManagerGeneric.processListeners(EventManagerGeneric.java:126)
at com.atlassian.crowd.manager.event.EventManagerGeneric.processEvents(EventManagerGeneric.java:65)
at jrockit.reflect.VirtualNativeMethodInvoker.invoke(Ljava.lang.Object;[Ljava.lang.Object;)Ljava.lang.Object;(Unknown Source)
at java.lang.reflect.Method.invoke(Ljava.lang.Object;[Ljava.lang.Object;I)Ljava.lang.Object;(Unknown Source)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:296)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:177)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:144)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)
at org.springframework.orm.hibernate3.HibernateInterceptor.invoke(HibernateInterceptor.java:104)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy8.processEvents()V(Unknown Source)
at com.atlassian.crowd.event.EventProcessor.executeInternal(EventProcessor.java:32)
at org.springframework.scheduling.quartz.QuartzJobBean.execute(QuartzJobBean.java:86)
at org.quartz.core.JobRunShell.run(JobRunShell.java:195)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:520)
Caused by: javax.mail.internet.AddressException: Illegal address in string ``''
at javax.mail.internet.InternetAddress.<init>(InternetAddress.java:68)
at com.atlassian.crowd.event.ResetPasswordEvent.execute(ResetPasswordEvent.java:170)
... 17 more