HOW TO CREATE A CUSTOM BUSINESS CARD IN LINUX

So, today i will explain, how to create a custom business cards   in Linux:

First of all start hist command:

apt-get install glabels

After that find glabes app to open to make:
set the size that you preffear and input some information and  that right and conclude your business card. 

HOW TO CHECK BLACK LIST OF MAIL SERVER

Acess this site and put ip server of your mail server

http://www.dnsbl.info/dnsbl-database-check.php