Maintenance mode Z is a free wordpress plugin to add Maintenance notice in your wordpress.
Main features:
4 strict and funny templates
custom image slider
time based maintenance
custom logo and custom text
social icons
access rules by IP and user
custom css
To install Maintenance mode Z
Login to wordpress (wp-admin).
In your admin dashboard click plugins and select Add New.
Type Maintenance mode Z in the search field and click Search Plugins button.
Install Maintenance mode Z.
After the successfully Installation click the activate Plugin link to activate the plugin.
[OR]
Download Maintenance mode Z wordpress plugin. Download link
Unzip and upload it to your WordPress wp-content/plugins directory.
Login to wp-admin. In your admin dashboard click plugins and activate the Maintenance mode Z wordpress plugin.
Download Contact Tab