Redmine

I install redmine from current GIT source code on CentOS7.

Then I migrate my database and files from old redmine (1.3.3) server to new install.
I do rake db:migrate.

My new install works good.
But if I try to create task from Email, sent by outlook web access (Microsoft Exchange Server 2010), I have some "style" strings in new task.
If I try to create task from Email, sent by Google Mail; all works well.

In attachment - my message, that was sent from outlook to redmine mailbox.
Can you help me? I don't need "style" text in my tasks.

My Environment:
Environment:
Redmine version 3.0.4.stable
Ruby version 2.0.0-p598 (2014-11-13) [x86_64-linux]
Rails version 4.2.3
Environment production
Database adapter Mysql2
SCM:
Subversion 1.7.14
Git 1.8.3.1
Filesystem
Redmine plugins:
no plugin installed

My task text from outlook:

P {margin-top:0;margin-bottom:0;}.NoojeeClickInstalled { }

Test Task.
This is tesk task for check task from email.