11 functions implement hook_mail()

Note: the procedural functions in this list are found by pattern matching, so the list may include some functions that are not actually implementations of this hook.

ContactHooks::mail in core/modules/contact/src/Hook/ContactHooks.php
Implements hook_mail().
contact_mail in core/modules/contact/contact.module
Implements hook_mail().
MailHtmlTestHooks::mail in core/modules/system/tests/modules/mail_html_test/src/Hook/MailHtmlTestHooks.php
Implements hook_mail().
mail_html_test_mail in core/modules/system/tests/modules/mail_html_test/mail_html_test.module
Implements hook_mail().
SystemHooks::mail in core/modules/system/src/Hook/SystemHooks.php
Implements hook_mail().
system_mail in core/modules/system/system.module
Implements hook_mail().
UpdateHooks::mail in core/modules/update/src/Hook/UpdateHooks.php
Implements hook_mail().
update_mail in core/modules/update/update.module
Implements hook_mail().
UserHooks::mail in core/modules/user/src/Hook/UserHooks.php
Implements hook_mail().
user_load_by_mail in core/modules/user/user.module
Fetches a user object by email address.
user_mail in core/modules/user/user.module
Implements hook_mail().

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.