Tosh

Hides private details from comment notification emails, such as IP address and email.
Why would you want this? Say for example you have Contributors on your blog. You don’t want them to get emails with your commenter’s private information.

Private Comment Notification Email

Hides private details from comment notification emails, such as IP address and email.

Matt Pramschufer

If you ever needed the ability to have a specific user account only be able to login from specific IP addresses then 
this is the plugin for you. It is a simple plugin that adds an IP Addresses field to the user profile screen. If you 
add in an IP address or a list of IP addresses that user will only be able to login from that IP address.
You have the option to redirect a user to a specific page if their IP address is not in the list of allowed IPs in the 
plugin options. If you don’t specify a URL it will redirect back to the homepage.
Another feature is to be able to have AUTO LOGIN from an IP address. The auto login feature does exactly what it 
sounds like. It will automatically login a user based on their IP Address.

User Allowed IP Addresses

Simple plugin that gives the ability to restrict login access to specific IP addresses for specific users. Option to Auto Login user based on IP.

Private Comment Notification Email vs User Allowed IP Addresses