Bu extension is associated with Pegasus Mail Temporary Files. You can try to open bu files with Pegasus Mail.
Bu extension stands for template files. These file formats are found in email sending software called Pegasus. Generally bu files are used for displaying html files. You can try to open bu files with Pegasus mail. To get detailed information about this application, or find a free email client please check the following web pages.
What to use bu
which page related to bu file
bu Related Searches
You can check related links about bu fileextension.