MDL-11306 - adding a bit of info to try and explain that you can use

.domain.com to allow subdomains

merged from MOODLE_19_STABLE

lang/en_utf8/admin.php

@@ -54,7 +54,7 @@
 $string['configallowassign'] = 'You can allow people who have the roles on the left side to assign some of the column roles to other people';
 $string['configallowcategorythemes'] = 'If you enable this, then themes can be set at the category level. This will affect all child categories and courses unless they have specifically set their own theme. WARNING: Enabling category themes may affect performance.';
 $string['configallowcoursethemes'] = 'If you enable this, then courses will be allowed to set their own themes.  Course themes override all other theme choices (site, user, or session themes)';
-$string['configallowemailaddresses'] = 'If you want to restrict all new email addresses to particular domains, then list them here separated by spaces.  All other domains will be rejected.  eg <strong>ourcollege.edu.au .gov.au</strong>';
+$string['configallowemailaddresses'] = 'If you want to restrict all new email addresses to particular domains, then list them here separated by spaces.  All other domains will be rejected.  To allow subdomains add the domain with a preceding \'.\'. eg <strong>ourcollege.edu.au .gov.au</strong>';
 $string['configallowobjectembed'] = 'As a default security measure, normal users are not allowed to embed multimedia (like Flash) within texts using explicit EMBED and OBJECT tags in their HTML (although it can still be done safely using the mediaplugins filter).  If you wish to allow these tags then enable this option.';
 $string['configallowoverride'] = 'You can allow people with the roles on the left side to override some of the column roles';
 $string['configallowunenroll'] = 'If this is set \'Yes\', then students are allowed to unenroll themselves from courses whenever they like. Otherwise they are not allowed, and this process will be solely controlled by the teachers and administrators.';
@@ -86,7 +86,7 @@
 $string['configdefaultrequestedcategory'] = 'Default category to put courses that were requested into, if they\'re approved.';
 $string['configdefaultuserroleid'] = 'All logged in users will be given the capabilities of the role you specify here, at the site level, in ADDITION to any other roles they may have been given.  The default is the Authenticated user role (or Guest role in older versions).  Note that this will not conflict with other roles they have, it just ensures that all users have capabilities that are not assignable at the course level (eg post blog entries, manage own calendar, etc).';
 $string['configdeleteunconfirmed'] = 'If you are using email authentication, this is the period within which a response will be accepted from users.  After this period, old unconfirmed accounts are deleted.';
-$string['configdenyemailaddresses'] = 'To deny email addresses from particular domains list them here in the same way.  All other domains will be accepted.  eg <strong>hotmail.com yahoo.co.uk</strong>';
+$string['configdenyemailaddresses'] = 'To deny email addresses from particular domains list them here in the same way.  All other domains will be accepted. To deny subdomains add the domain with a preceding \'.\'. eg <strong>hotmail.com yahoo.co.uk .live.com</strong>';
 $string['configdigestmailtime'] = 'People who choose to have emails sent to them in digest form will be emailed the digest daily. This setting controls which time of day the daily mail will be sent (the next cron that runs after this hour will send it).';
 $string['configdisableuserimages'] = 'Disable the ability for users to change user profile images.';
 $string['configdisplayloginfailures'] = 'This will display information to selected users about previous failed logins.';