diff --git a/src/apps/api/views/competitions.py b/src/apps/api/views/competitions.py
index cf22b444e..793e4efda 100644
--- a/src/apps/api/views/competitions.py
+++ b/src/apps/api/views/competitions.py
@@ -795,7 +795,7 @@ class CompetitionParticipantViewSet(ModelViewSet):
     queryset = CompetitionParticipant.objects.all()
     serializer_class = CompetitionParticipantSerializer
     filter_backends = (DjangoFilterBackend, SearchFilter)
-    filter_fields = ('user__username', 'user__email', 'status', 'competition')
+    filter_fields = ('user__username', 'user__email', 'status', 'competition', 'user__is_deleted')
     search_fields = ('user__username', 'user__email',)
 
     def get_queryset(self):
diff --git a/src/apps/profiles/models.py b/src/apps/profiles/models.py
index 66918e173..991b4451f 100644
--- a/src/apps/profiles/models.py
+++ b/src/apps/profiles/models.py
@@ -207,6 +207,7 @@ def delete(self, *args, **kwargs):
         # Mark the user as deleted
         self.is_deleted = True
         self.deleted_at = now()
+        self.is_active = False
 
         # Anonymize or removed personal data
         user_email = self.email  # keep track of the email for the end of the procedure
diff --git a/src/apps/profiles/views.py b/src/apps/profiles/views.py
index f5b7f5863..f8c090038 100644
--- a/src/apps/profiles/views.py
+++ b/src/apps/profiles/views.py
@@ -28,6 +28,7 @@
 from datasets.models import Data, DataGroup
 from tasks.models import Task
 from forums.models import Post
+from utils.email import codalab_send_mail
 
 
 class LoginView(auth_views.LoginView):
@@ -110,20 +111,21 @@ def activateEmail(request, user, to_email):
 
 
 def send_delete_account_confirmation_mail(request, user):
-    mail_subject = 'Confirm Your Account Deletion Request'
-    message = render_to_string('profiles/emails/template_delete_account.html', {
+    context = {
         'user': user,
         'domain': get_current_site(request).domain,
         'uid': urlsafe_base64_encode(force_bytes(user.pk)),
         'token': default_token_generator.make_token(user),
         'protocol': 'https' if request.is_secure() else 'http'
-    })
-    email = EmailMessage(mail_subject, message, to=[user.email])
-    if email.send():
-        messages.success(request, f'Dear {user.username}, please go to your email inbox and click on \
-            the link to complete the deletion process. *Note: Check your spam folder.')
-    else:
-        messages.error(request, f'Problem sending confirmation email.')
+    }
+    codalab_send_mail(
+        context_data=context,
+        subject=f'Confirm Your Account Deletion Request',
+        html_file="profiles/emails/template_delete_account.html",
+        text_file="profiles/emails/template_delete_account.txt",
+        to_email=[user.email]
+    )
+    messages.success(request, f'Dear {user.username}, please go to your email inbox and click on the link to complete the deletion process. *Note: Check your spam folder.')
 
 
 def send_user_deletion_notice_to_admin(user):
@@ -140,8 +142,7 @@ def send_user_deletion_notice_to_admin(user):
     queues = user.queues.all()
     posts = Post.objects.filter(posted_by=user)
 
-    mail_subject = f'Notice: user {user.username} removed his account'
-    message = render_to_string('profiles/emails/template_delete_account_notice.html', {
+    context = {
         'user': user,
         'organizations': organizations,
         'competitions_organizer': competitions_organizer,
@@ -152,16 +153,24 @@ def send_user_deletion_notice_to_admin(user):
         'tasks': tasks,
         'queues': queues,
         'posts': posts
-    })
-    email = EmailMessage(mail_subject, message, to=admin_emails)
-    email.send()
+    }
+    codalab_send_mail(
+        context_data=context,
+        subject=f'Notice: user {user.username} removed his account',
+        html_file="profiles/emails/template_delete_account_notice.html",
+        text_file="profiles/emails/template_delete_account_notice.txt",
+        to_email=admin_emails
+    )
 
 
 def send_user_deletion_confirmed(email):
-    mail_subject = f'Codabench: your account has been successfully removed'
-    message = render_to_string('profiles/emails/template_delete_account_confirmed.html')
-    email = EmailMessage(mail_subject, message, to=[email])
-    email.send()
+    codalab_send_mail(
+        context_data={},
+        subject=f'Codabench: your account has been successfully removed',
+        html_file="profiles/emails/template_delete_account_confirmed.html",
+        text_file="profiles/emails/template_delete_account_confirmed.txt",
+        to_email=[email]
+    )
 
 
 def delete(request, uidb64, token):
diff --git a/src/static/riot/competitions/detail/participant_manager.tag b/src/static/riot/competitions/detail/participant_manager.tag
index 0043b4a26..55cde959e 100644
--- a/src/static/riot/competitions/detail/participant_manager.tag
+++ b/src/static/riot/competitions/detail/participant_manager.tag
@@ -12,6 +12,10 @@
             <option value="denied">Denied</option>
             <option value="unknown">Unknown</option>
         </select>
+        <div class="ui checkbox">
+            <input type="checkbox" ref="participant_show_deleted" onchange="{ update_participants.bind(this, undefined) }">
+            <label>Show deleted accounts</label>
+        </div>
         <div class="ui blue icon button" onclick="{show_email_modal.bind(this, undefined)}"><i class="envelope icon"></i> Email all participants</div>
         <table class="ui celled striped table">
             <thead>
@@ -140,6 +144,11 @@
                 filters.status = status
             }
 
+            let show_deleted_users = self.refs.participant_show_deleted.checked
+            if (show_deleted_users !== null && show_deleted_users === false) {
+                filters.user__is_deleted = show_deleted_users
+            }
+
             CODALAB.api.get_participants(filters)
                 .done(participants => {
                     self.participants = participants
diff --git a/src/templates/profiles/emails/template_delete_account.txt b/src/templates/profiles/emails/template_delete_account.txt
new file mode 100644
index 000000000..536567411
--- /dev/null
+++ b/src/templates/profiles/emails/template_delete_account.txt
@@ -0,0 +1,24 @@
+{% extends 'emails/base_email.html' %}
+
+{% block content %}
+    <p>We have received your request to delete your account.</p>
+    <p>To proceed with the deletion of your account, please confirm your request by clicking the link below:</p>
+    <p><a href="{{ protocol }}://{{ domain }}{% url 'accounts:delete' uidb64=uid token=token %}">{{ protocol }}://{{ domain }}{% url 'accounts:delete' uidb64=uid token=token %}</a></p>
+
+    <br>
+
+    <p><strong>Important Information:</strong></p>
+    <ul>
+        <li>Once confirmed, all your personal data will be permanently deleted or anonymized, except for competitions and submissions retained under our user agreement.</li>
+        <li>After deletion, you will no longer be eligible for any cash prizes in ongoing or future competitions.</li>
+        <li>If you wish to delete any submissions, please do so before confirming your account deletion.</li>
+    </ul>
+
+    <br>
+
+    <p>If you did not request this action or have changed your mind, you can safely ignore this email, and your account will remain intact.</p>
+
+    <br>
+
+    <p>Thank you for being part of our community.</p>
+{% endblock %}
diff --git a/src/templates/profiles/emails/template_delete_account_confirmed.txt b/src/templates/profiles/emails/template_delete_account_confirmed.txt
new file mode 100644
index 000000000..690b2dff3
--- /dev/null
+++ b/src/templates/profiles/emails/template_delete_account_confirmed.txt
@@ -0,0 +1,7 @@
+{% extends 'emails/base_email.html' %}
+
+{% block content %}
+    <p>Your account has been successfully removed. Thank you for being part of our community.</p>
+    <br>
+    <p>If you change your mind, you can create a new account at any time. We'd be happy to welcome you back!</p>    
+{% endblock %}
diff --git a/src/templates/profiles/emails/template_delete_account_notice.txt b/src/templates/profiles/emails/template_delete_account_notice.txt
new file mode 100644
index 000000000..374511567
--- /dev/null
+++ b/src/templates/profiles/emails/template_delete_account_notice.txt
@@ -0,0 +1,118 @@
+{% extends 'emails/base_email.html' %}
+
+{% block content %}
+    <h2>User account deletion notice</h2>
+
+    <p>You are receiving this notice because your are an administrator of the platform.</p>
+
+    <br>
+
+    <p>The following user has removed their account:</p>
+    <ul>
+        <li><strong>id:</strong> {{ user.id }}</li>
+        <li><strong>username:</strong> {{ user.username }}</li>
+        <li><strong>email:</strong> {{ user.email }}</li>
+    </ul>
+
+    <br>
+
+    <h3>Summary</h3>
+
+    <ul>
+        <li>Organizations: {{ organizations|length }}</li>
+        <li>Competitions owner: {{ competitions_organizer|length }} </li>
+        <li>Competitions participation: {{ competitions_participation|length }}</li>
+        <li>Submissions: {{ submissions|length }}</li>
+        <li>Data: {{ data|length }}</li>
+        <li>DataGroups: {{ data_groups|length }}</li>
+        <li>Tasks: {{ tasks|length }}</li>
+        <li>Queues: {{ queues|length }}</li>
+        <li>Posts: {{ posts|length }}</li>
+    </ul>
+
+    <h3>Details</h3>
+
+    <h4>Organizations the user is part of:</h4>
+    <ul>
+        {% for organization in organizations.all %}
+            <li>
+                <a class="item" href="{% url 'profiles:organization_profile' pk=organization.id %}">
+                    {{ organization }}
+                </a>
+            </li>
+        {% endfor %}
+    </ul>
+
+    <h4>Competitions the user is the owner:</h4>
+    <ul>
+        {% for competition in competitions_organizer.all %}
+            <li>
+                <a class="item" href="{% url 'competitions:detail' pk=competition.pk %}">
+                    {{ competition }}
+                </a>
+            </li>
+        {% endfor %}
+    </ul>
+
+    <h4>Competitions the user participated in:</h4>
+    <ul>
+        {% for competition in competitions_participation.all %}
+        <li>
+            <a class="item" href="{% url 'competitions:detail' pk=competition.pk %}">
+                {{ competition }}
+            </a>
+        </li>
+        {% endfor %}
+    </ul>
+
+    <h4>Submissions from the user:</h4>
+    <ul>
+        {% for submission in submissions.all %}
+        <li>
+            {{ submission }}
+        </li>
+        {% endfor %}
+    </ul>
+
+    <h4>Data created by the user</h4>
+    <ul>
+        {% for d in data.all %}
+        <li>
+            {{ d }}
+        </li>
+        {% endfor %}
+    </ul>
+
+    <h4>DataGroups created by the user</h4>
+    <ul>
+        {% for data_group in data_groups.all %}
+            <li>{{ data_group }}</li>
+        {% endfor %}
+    </ul>
+
+    <h4>Tasks created by the user</h4>
+    <ul>
+        {% for task in tasks.all %}
+        <li>
+            <a class="item" href="{% url 'tasks:detail' pk=task.pk %}">
+                {{ task }}
+            </a>
+        </li>
+        {% endfor %}
+    </ul>
+
+    <h4>Queues created by the user</h4>
+    <ul>
+        {% for queue in queues.all %}
+            <li>{{ queue }}</li>
+        {% endfor %}
+    </ul>
+
+    <h4>Posts posted by the user</h4>
+    <ul>
+        {% for post in posts.all %}
+            <li>{{ post }}</li>
+        {% endfor %}
+    </ul>
+
+{% endblock %}