email: Update module docstrings

Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org>
Reviewed-by: James Valleroy <jvalleroy@mailbox.org>

plinth/modules/email/aliases.py

@@ -1,5 +1,7 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
-"""Manage email aliases."""
+"""
+Manage email aliases stored in sqlite database.
+"""
 
 import contextlib
 import pwd

plinth/modules/email/forms.py

@@ -2,6 +2,7 @@
 """
 Forms for the email app.
 """
+
 import re
 
 from django import forms

plinth/modules/email/manifest.py

@@ -1,4 +1,7 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
+"""
+Application manifest for email.
+"""
 
 from django.utils.translation import gettext_lazy as _
 

plinth/modules/email/privileged/__init__.py

@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
 """
-Provides diagnosis and repair of email server configuration issues
+Provides privileged actions that run as root.
 """
 
 from . import aliases, dkim, domain, home, postfix, spam, tls

plinth/modules/email/privileged/aliases.py

@@ -1,5 +1,7 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
-"""Privileged operations for managing aliases."""
+"""
+Privileged operations for managing aliases.
+"""
 
 import pathlib
 import shutil

plinth/modules/email/privileged/domain.py

@@ -1,5 +1,7 @@
-"""Configure email domains"""
 # SPDX-License-Identifier: AGPL-3.0-or-later
+"""
+Configure domains accepted by postfix.
+"""
 
 import pathlib
 import re

plinth/modules/email/privileged/spam.py

@@ -1,5 +1,7 @@
-"""Configures spam filters and the virus scanner"""
 # SPDX-License-Identifier: AGPL-3.0-or-later
+"""
+Configures rspamd to handle incoming and outgoing spam.
+"""
 
 import pathlib
 import re

plinth/modules/email/privileged/tls.py

@@ -1,5 +1,7 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
-"""TLS configuration for postfix and dovecot."""
+"""
+TLS certificate configuration for postfix and dovecot.
+"""
 
 import pathlib
 

plinth/modules/email/urls.py

@@ -1,4 +1,8 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
+"""
+URLs for the email module.
+"""
+
 from django.urls import path
 from stronghold.decorators import public