User Email address is hidden in view

I am using a view that shows (besides others) the user's email adress (with a mailto: link). `Views Send` is not installed (so the other bug about this, which was apparently fixed, is something else).

The email adress does not show up in the view (preview/live) - the corresponding <td> tag is empty.

I can provide you with the view here (Caution: OG module is necessary!):

$view = new view();
$view->name = 'landesgesellschaften';
$view->description = 'Übersicht Landesgesellschaften mit deren Verwaltern';
$view->base_table = 'og_membership';
$view->human_name = 'Landesgesellschaften';
$view->core = 7;
$view->api_version = '3.0';
$view->disabled = FALSE; /* Edit this to true to make a default view disabled initially */

/* Display: Master */
$handler = $view->new_display('default', 'Master', 'default');
$handler->display->display_options['title'] = 'Ansprechpartner für Landesgesellschaften';
$handler->display->display_options['css_class'] = 'first-col-10 last-col-35';
$handler->display->display_options['use_more_always'] = FALSE;
$handler->display->display_options['use_more_text'] = 'mehr';
$handler->display->display_options['access']['type'] = 'role';
$handler->display->display_options['access']['role'] = array(
  2 => '2',
);
$handler->display->display_options['cache']['type'] = 'none';
$handler->display->display_options['query']['type'] = 'views_query';
$handler->display->display_options['query']['options']['distinct'] = TRUE;
$handler->display->display_options['query']['options']['pure_distinct'] = TRUE;
$handler->display->display_options['exposed_form']['type'] = 'basic';
$handler->display->display_options['exposed_form']['options']['submit_button'] = 'Anwenden';
$handler->display->display_options['exposed_form']['options']['reset_button_label'] = 'Zurücksetzen';
$handler->display->display_options['exposed_form']['options']['exposed_sorts_label'] = 'Sortieren nach';
$handler->display->display_options['exposed_form']['options']['sort_asc_label'] = 'Aufsteigend';
$handler->display->display_options['exposed_form']['options']['sort_desc_label'] = 'Absteigend';
$handler->display->display_options['pager']['type'] = 'none';
$handler->display->display_options['pager']['options']['offset'] = '0';
$handler->display->display_options['style_plugin'] = 'table';
$handler->display->display_options['style_options']['grouping'] = array(
  0 => array(
    'field' => 'title',
    'rendered' => 1,
    'rendered_strip' => 0,
  ),
);
$handler->display->display_options['style_options']['columns'] = array(
  'uid' => 'uid',
  'name' => 'name',
  'picture' => 'picture',
  'field_nachname' => 'field_nachname',
  'field_vorname' => 'field_nachname',
  'title' => 'title',
  'nothing' => 'nothing',
  'mail' => 'mail',
);
$handler->display->display_options['style_options']['default'] = '-1';
$handler->display->display_options['style_options']['info'] = array(
  'uid' => array(
    'sortable' => 0,
    'default_sort_order' => 'asc',
    'align' => '',
    'separator' => '',
    'empty_column' => 0,
  ),
  'name' => array(
    'sortable' => 0,
    'default_sort_order' => 'asc',
    'align' => '',
    'separator' => '',
    'empty_column' => 0,
  ),
  'picture' => array(
    'sortable' => 0,
    'default_sort_order' => 'asc',
    'align' => '',
    'separator' => '',
    'empty_column' => 0,
  ),
  'field_nachname' => array(
    'sortable' => 0,
    'default_sort_order' => 'asc',
    'align' => '',
    'separator' => ',',
    'empty_column' => 0,
  ),
  'field_vorname' => array(
    'sortable' => 0,
    'default_sort_order' => 'asc',
    'align' => '',
    'separator' => '',
    'empty_column' => 0,
  ),
  'title' => array(
    'sortable' => 0,
    'default_sort_order' => 'asc',
    'align' => '',
    'separator' => '',
    'empty_column' => 0,
  ),
  'nothing' => array(
    'align' => '',
    'separator' => '',
    'empty_column' => 0,
  ),
  'mail' => array(
    'sortable' => 0,
    'default_sort_order' => 'asc',
    'align' => '',
    'separator' => '',
    'empty_column' => 0,
  ),
);
/* Beziehung: OG Mitgliedschaft: Benutzer from OG membership */
$handler->display->display_options['relationships']['og_membership_related_user']['id'] = 'og_membership_related_user';
$handler->display->display_options['relationships']['og_membership_related_user']['table'] = 'og_membership';
$handler->display->display_options['relationships']['og_membership_related_user']['field'] = 'og_membership_related_user';
$handler->display->display_options['relationships']['og_membership_related_user']['label'] = 'Benutzer von OG Mitgliedschaft';
$handler->display->display_options['relationships']['og_membership_related_user']['required'] = TRUE;
/* Beziehung: OG Mitgliedschaft: Group Beitrag from OG membership */
$handler->display->display_options['relationships']['og_membership_related_node_group']['id'] = 'og_membership_related_node_group';
$handler->display->display_options['relationships']['og_membership_related_node_group']['table'] = 'og_membership';
$handler->display->display_options['relationships']['og_membership_related_node_group']['field'] = 'og_membership_related_node_group';
$handler->display->display_options['relationships']['og_membership_related_node_group']['label'] = 'Gruppenbeitrag von OG Mitgliedschaft';
$handler->display->display_options['relationships']['og_membership_related_node_group']['required'] = TRUE;
/* Beziehung: OG Mitgliedschaft: OG Roles from membership */
$handler->display->display_options['relationships']['og_users_roles']['id'] = 'og_users_roles';
$handler->display->display_options['relationships']['og_users_roles']['table'] = 'og_membership';
$handler->display->display_options['relationships']['og_users_roles']['field'] = 'og_users_roles';
$handler->display->display_options['relationships']['og_users_roles']['required'] = TRUE;
/* Feld: Benutzer: Uid */
$handler->display->display_options['fields']['uid']['id'] = 'uid';
$handler->display->display_options['fields']['uid']['table'] = 'users';
$handler->display->display_options['fields']['uid']['field'] = 'uid';
$handler->display->display_options['fields']['uid']['relationship'] = 'og_membership_related_user';
$handler->display->display_options['fields']['uid']['exclude'] = TRUE;
/* Feld: Benutzer: Name */
$handler->display->display_options['fields']['name']['id'] = 'name';
$handler->display->display_options['fields']['name']['table'] = 'users';
$handler->display->display_options['fields']['name']['field'] = 'name';
$handler->display->display_options['fields']['name']['relationship'] = 'og_membership_related_user';
$handler->display->display_options['fields']['name']['label'] = '';
$handler->display->display_options['fields']['name']['exclude'] = TRUE;
$handler->display->display_options['fields']['name']['element_label_colon'] = FALSE;
/* Feld: Benutzer: Bild */
$handler->display->display_options['fields']['picture']['id'] = 'picture';
$handler->display->display_options['fields']['picture']['table'] = 'users';
$handler->display->display_options['fields']['picture']['field'] = 'picture';
$handler->display->display_options['fields']['picture']['relationship'] = 'og_membership_related_user';
$handler->display->display_options['fields']['picture']['label'] = '';
$handler->display->display_options['fields']['picture']['alter']['path'] = 'users/[name]';
$handler->display->display_options['fields']['picture']['element_label_colon'] = FALSE;
$handler->display->display_options['fields']['picture']['image_style'] = 'micro-thumbnail';
/* Feld: Feld: Nachname */
$handler->display->display_options['fields']['field_nachname']['id'] = 'field_nachname';
$handler->display->display_options['fields']['field_nachname']['table'] = 'field_data_field_nachname';
$handler->display->display_options['fields']['field_nachname']['field'] = 'field_nachname';
$handler->display->display_options['fields']['field_nachname']['relationship'] = 'og_membership_related_user';
$handler->display->display_options['fields']['field_nachname']['label'] = '';
$handler->display->display_options['fields']['field_nachname']['exclude'] = TRUE;
$handler->display->display_options['fields']['field_nachname']['element_label_colon'] = FALSE;
/* Feld: Feld: Vorname */
$handler->display->display_options['fields']['field_vorname']['id'] = 'field_vorname';
$handler->display->display_options['fields']['field_vorname']['table'] = 'field_data_field_vorname';
$handler->display->display_options['fields']['field_vorname']['field'] = 'field_vorname';
$handler->display->display_options['fields']['field_vorname']['relationship'] = 'og_membership_related_user';
$handler->display->display_options['fields']['field_vorname']['label'] = '';
$handler->display->display_options['fields']['field_vorname']['exclude'] = TRUE;
$handler->display->display_options['fields']['field_vorname']['element_label_colon'] = FALSE;
/* Feld: Inhalt: Titel */
$handler->display->display_options['fields']['title']['id'] = 'title';
$handler->display->display_options['fields']['title']['table'] = 'node';
$handler->display->display_options['fields']['title']['field'] = 'title';
$handler->display->display_options['fields']['title']['relationship'] = 'og_membership_related_node_group';
$handler->display->display_options['fields']['title']['label'] = '';
$handler->display->display_options['fields']['title']['exclude'] = TRUE;
$handler->display->display_options['fields']['title']['element_label_colon'] = FALSE;
/* Feld: (Benutzer von OG Mitgliedschaft) Nachname, Vorname */
$handler->display->display_options['fields']['nothing']['id'] = 'nothing';
$handler->display->display_options['fields']['nothing']['table'] = 'views';
$handler->display->display_options['fields']['nothing']['field'] = 'nothing';
$handler->display->display_options['fields']['nothing']['ui_name'] = '(Benutzer von OG Mitgliedschaft) Nachname, Vorname';
$handler->display->display_options['fields']['nothing']['label'] = '';
$handler->display->display_options['fields']['nothing']['alter']['text'] = '[field_nachname], [field_vorname]';
$handler->display->display_options['fields']['nothing']['element_label_colon'] = FALSE;
/* Feld: Benutzer: E-Mail */
$handler->display->display_options['fields']['mail']['id'] = 'mail';
$handler->display->display_options['fields']['mail']['table'] = 'users';
$handler->display->display_options['fields']['mail']['field'] = 'mail';
$handler->display->display_options['fields']['mail']['relationship'] = 'og_membership_related_user';
$handler->display->display_options['fields']['mail']['label'] = '';
$handler->display->display_options['fields']['mail']['element_label_colon'] = FALSE;
/* Sortierkriterien: Inhalt: Titel */
$handler->display->display_options['sorts']['title']['id'] = 'title';
$handler->display->display_options['sorts']['title']['table'] = 'node';
$handler->display->display_options['sorts']['title']['field'] = 'title';
$handler->display->display_options['sorts']['title']['relationship'] = 'og_membership_related_node_group';
/* Filterkriterium: Inhalt: Typ */
$handler->display->display_options['filters']['type']['id'] = 'type';
$handler->display->display_options['filters']['type']['table'] = 'node';
$handler->display->display_options['filters']['type']['field'] = 'type';
$handler->display->display_options['filters']['type']['relationship'] = 'og_membership_related_node_group';
$handler->display->display_options['filters']['type']['value'] = array(
  'landesgesellschaft' => 'landesgesellschaft',
);
$handler->display->display_options['filters']['type']['group'] = 1;
/* Filterkriterium: Admin ausblenden */
$handler->display->display_options['filters']['uid_raw']['id'] = 'uid_raw';
$handler->display->display_options['filters']['uid_raw']['table'] = 'users';
$handler->display->display_options['filters']['uid_raw']['field'] = 'uid_raw';
$handler->display->display_options['filters']['uid_raw']['relationship'] = 'og_membership_related_user';
$handler->display->display_options['filters']['uid_raw']['ui_name'] = 'Admin ausblenden';
$handler->display->display_options['filters']['uid_raw']['operator'] = '!=';
$handler->display->display_options['filters']['uid_raw']['value']['value'] = '1';
$handler->display->display_options['filters']['uid_raw']['group'] = 1;
/* Filterkriterium: Christian Linzbauer ausblenden */
$handler->display->display_options['filters']['uid_raw_1']['id'] = 'uid_raw_1';
$handler->display->display_options['filters']['uid_raw_1']['table'] = 'users';
$handler->display->display_options['filters']['uid_raw_1']['field'] = 'uid_raw';
$handler->display->display_options['filters']['uid_raw_1']['relationship'] = 'og_membership_related_user';
$handler->display->display_options['filters']['uid_raw_1']['ui_name'] = 'Christian Linzbauer ausblenden';
$handler->display->display_options['filters']['uid_raw_1']['operator'] = '!=';
$handler->display->display_options['filters']['uid_raw_1']['value']['value'] = '997';

/* Display: Seite */
$handler = $view->new_display('page', 'Seite', 'page');
$handler->display->display_options['defaults']['header'] = FALSE;
/* Kopfbereich: Global: Textbereich */
$handler->display->display_options['header']['area']['id'] = 'area';
$handler->display->display_options['header']['area']['table'] = 'views';
$handler->display->display_options['header']['area']['field'] = 'area';
$handler->display->display_options['header']['area']['content'] = 'Hier finden Sie Alle Landesgesellschaften und die dazugehörigen Personen, die mit deren Mitgliederverwaltung betraut sind.';
$handler->display->display_options['header']['area']['format'] = 'filtered_html';
/* Kopfbereich: Global: Ansichtsbereich */
$handler->display->display_options['header']['view']['id'] = 'view';
$handler->display->display_options['header']['view']['table'] = 'views';
$handler->display->display_options['header']['view']['field'] = 'view';
$handler->display->display_options['header']['view']['label'] = 'Sekretariat';
$handler->display->display_options['header']['view']['empty'] = TRUE;
$handler->display->display_options['header']['view']['view_to_insert'] = 'landesgesellschaften:block_secretary';
$handler->display->display_options['path'] = 'landesgesellschaften';
$handler->display->display_options['menu']['type'] = 'normal';
$handler->display->display_options['menu']['title'] = 'Landesgesellschaften';
$handler->display->display_options['menu']['description'] = 'Übersicht über Gesellschaften und deren Verwalter';
$handler->display->display_options['menu']['weight'] = '10';
$handler->display->display_options['menu']['context'] = 0;
$handler->display->display_options['menu']['context_only_inline'] = 0;

/* Display: Block Sekretariat */
$handler = $view->new_display('block', 'Block Sekretariat', 'block_secretary');
$handler->display->display_options['display_description'] = 'Zeigt nur das "Globale" Sekretariat';
$handler->display->display_options['defaults']['query'] = FALSE;
$handler->display->display_options['query']['type'] = 'views_query';
$handler->display->display_options['query']['options']['distinct'] = TRUE;
$handler->display->display_options['query']['options']['pure_distinct'] = TRUE;
$handler->display->display_options['defaults']['pager'] = FALSE;
$handler->display->display_options['pager']['type'] = 'some';
$handler->display->display_options['pager']['options']['items_per_page'] = '1';
$handler->display->display_options['pager']['options']['offset'] = '0';
$handler->display->display_options['defaults']['style_plugin'] = FALSE;
$handler->display->display_options['style_plugin'] = 'grid';
$handler->display->display_options['style_options']['columns'] = '1';
$handler->display->display_options['style_options']['caption'] = 'Sekretariat';
$handler->display->display_options['defaults']['style_options'] = FALSE;
$handler->display->display_options['defaults']['row_plugin'] = FALSE;
$handler->display->display_options['row_plugin'] = 'fields';
$handler->display->display_options['row_options']['inline'] = array(
  'field_nachname' => 'field_nachname',
  'field_vorname' => 'field_vorname',
);
$handler->display->display_options['row_options']['separator'] = ', ';
$handler->display->display_options['defaults']['row_options'] = FALSE;
$handler->display->display_options['defaults']['filter_groups'] = FALSE;
$handler->display->display_options['defaults']['filters'] = FALSE;
/* Filterkriterium: Inhalt: Typ */
$handler->display->display_options['filters']['type']['id'] = 'type';
$handler->display->display_options['filters']['type']['table'] = 'node';
$handler->display->display_options['filters']['type']['field'] = 'type';
$handler->display->display_options['filters']['type']['relationship'] = 'og_membership_related_node_group';
$handler->display->display_options['filters']['type']['value'] = array(
  'landesgesellschaft' => 'landesgesellschaft',
);
/* Filterkriterium: Admin ausblenden */
$handler->display->display_options['filters']['uid_raw']['id'] = 'uid_raw';
$handler->display->display_options['filters']['uid_raw']['table'] = 'users';
$handler->display->display_options['filters']['uid_raw']['field'] = 'uid_raw';
$handler->display->display_options['filters']['uid_raw']['relationship'] = 'og_membership_related_user';
$handler->display->display_options['filters']['uid_raw']['ui_name'] = 'Admin ausblenden';
$handler->display->display_options['filters']['uid_raw']['operator'] = '!=';
$handler->display->display_options['filters']['uid_raw']['value']['value'] = '1';
/* Filterkriterium: nur Christian Linzbauer */
$handler->display->display_options['filters']['uid_raw_1']['id'] = 'uid_raw_1';
$handler->display->display_options['filters']['uid_raw_1']['table'] = 'users';
$handler->display->display_options['filters']['uid_raw_1']['field'] = 'uid_raw';
$handler->display->display_options['filters']['uid_raw_1']['relationship'] = 'og_membership_related_user';
$handler->display->display_options['filters']['uid_raw_1']['ui_name'] = 'nur Christian Linzbauer';
$handler->display->display_options['filters']['uid_raw_1']['value']['value'] = '997';
$handler->display->display_options['field_config'] = array(
  'uid' => array(
    'merge_option' => 'merge_unique',
    'separator' => ', ',
  ),
  'name' => array(
    'merge_option' => 'merge_unique',
    'separator' => ', ',
  ),
  'picture' => array(
    'merge_option' => 'merge_unique',
    'separator' => ', ',
  ),
  'field_nachname' => array(
    'merge_option' => 'merge_unique',
    'separator' => ', ',
  ),
  'field_vorname' => array(
    'merge_option' => 'merge_unique',
    'separator' => ', ',
  ),
  'title' => array(
    'merge_option' => 'merge_unique',
    'separator' => ', ',
  ),
  'nothing' => array(
    'merge_option' => 'merge_unique',
    'separator' => ', ',
  ),
  'mail' => array(
    'merge_option' => 'merge_unique',
    'separator' => ', ',
  ),
);
$handler->display->display_options['block_description'] = 'Sekretariat';
);