8 calls to valid_email_address()

comment_form_validate in drupal/modules/comment/comment.module
Validate comment form submissions.
contact_category_edit_form_validate in drupal/modules/contact/contact.admin.inc
Form validation handler for contact_category_edit_form().
contact_personal_form_validate in drupal/modules/contact/contact.pages.inc
Form validation handler for contact_personal_form().
contact_site_form_validate in drupal/modules/contact/contact.pages.inc
Form validation handler for contact_site_form().
system_send_email_action_validate in drupal/modules/system/system.module
Validate system_send_email_action form submissions.
update_settings_validate in drupal/modules/update/update.settings.inc
Form validation handler for update_settings().
user_validate_mail in drupal/modules/user/user.module
Validates a user's email address.
_openid_invalid_openid_transition in drupal/modules/openid/openid.inc
Provides transition for accounts with possibly invalid OpenID identifiers in authmap.