-Not All users have the problem. It is found in some particular users. -No Notifications are visible in Homepage> Notifications neither they are recieved in the Email. -Settings for Email Notifications: <source defaultFollowFrequency="DAILY" enabled="true" imagesURL="{notification.source.url}/images/" name="Activities"> <type name="notify" notificationType="DIRECTED"> <channel enabled="true" name="email"> <property name="sender">activities-admin@sogeti.com</property> <property name="url">{notification.source.url}/email/notifyMail.jsp</property> </channel> <channel enabled="true" name="event"> <property name="eventName">activities.notification.notify</property> <property name="transformerClass">com.ibm.lotus.connections.core.notify.channels.event.ActivitiesNotificationEventTransformer</property> </channel> </type> <type name="autocomplete" notificationType="DIRECTED"> <channel enabled="true" name="email"> <property name="sender">activities-admin@sogeti.com</property> <property name="url">{notification.source.url}/email/autoCompleteActivityMail.jsp</property> </channel> <channel enabled="true" name="event"> <property name="eventName">activities.notification.autocomplete</property> <property name="transformerClass">com.ibm.lotus.connections.core.notify.channels.event.ActivitiesNotificationEventTransformer</property> </channel> </type> <type name="create" notificationType="DIRECTED"> <channel enabled="true" name="email"> <property name="sender">activities-admin@sogeti.com</property> <property name="url">{notification.source.url}/email/createMail.jsp</property> </channel> <channel enabled="true" name="event"> <property name="eventName">activities.notification.create</property> <property name="transformerClass">com.ibm.lotus.connections.core.notify.channels.event.ActivitiesNotificationEventTransformer</property> </channel> </type> <type name="add-member" notificationType="DIRECTED"> <channel enabled="true" name="email"> <property name="sender">activities-admin@sogeti.com</property> <property name="url">{notification.source.url}/email/addMemberMail.jsp</property> </channel> <channel enabled="true" name="event"> <property name="eventName">activities.notification.addmember</property> <property name="transformerClass">com.ibm.lotus.connections.core.notify.channels.event.ActivitiesNotificationEventTransformer</property> </channel> </type> </source> -It works that way when a user assigns a to-do and set explcitely "Notify people of this entry" we also recieve an email. But when we go for assigning people in a group it does not work.