Note: this list is generated by pattern matching, so it may include some functions that are not actually implementations of this hook.

backdrop_mail in core/includes/mail.inc
Composes and optionally sends an e-mail message.
backdrop_wrap_mail in core/includes/mail.inc
Performs format=flowed soft wrapping for mail (RFC 3676).
contact_mail in core/modules/contact/contact.module
Implements hook_mail().
drupal_mail in core/includes/drupal.inc
Composes and optionally sends an e-mail message.
drupal_wrap_mail in core/includes/drupal.inc
Performs format=flowed soft wrapping for mail (RFC 3676).
email_example_mail in modules/examples/email_example/email_example.module
Implements hook_mail().
system_mail in core/modules/system/system.module
Implements hook_mail().
update_mail in core/modules/update/update.module
Implements hook_mail().
user_load_by_mail in core/modules/user/user.module
Fetch a user object by email address.
user_mail in core/modules/user/user.module
Implements hook_mail().