If notifier configuration is committers = true, then for each SCM change the Author is added in To Address. Even if the Author is already a Recipient. The Author will only get one email, but the To Address will get right long. http://svn.apache.org/repos/asf/continuum/tags/continuum-1.3.3/continuum-core/src/main/java/org/apache/maven/continuum/notification/mail/MailContinuumNotifier.java for ( ChangeSet changeSet : changes ) { String scmId = changeSet.getAuthor(); if ( StringUtils.isNotEmpty( scmId ) ) { String email = developerToEmailMap.get( scmId ); if ( StringUtils.isEmpty( email ) ) { //TODO: Add a default domain so mail address won't be required log.warn( "no email address is defined in developers list for '" + scmId + "' scm id." ); } else { // TODO: set a proper name InternetAddress to = new InternetAddress( email.trim() ); log.info( "Recipient: To '" + to + "'." ); message.addRecipient( Message.RecipientType.TO, to ); } } } <ciManagement> <system>continuum</system> <url>http://server/continuum/</url> <notifiers> <notifier> <type>mail</type> <sendOnError>true</sendOnError> <sendOnFailure>true</sendOnFailure> <sendOnSuccess>false</sendOnSuccess> <sendOnWarning>true</sendOnWarning> <configuration> <committers>true</committers> </configuration> </notifier> </notifiers> </ciManagement>