To change the appearance of outgoing emails in BlueMail, please tap the gray rectangle with an arrow icon located just below and to the right of the Subject line.
You can tap the arrow icon again to hide this toolbar.
In addition to B I and U, the additional icons perform the following functions:
| 
| Bold | | 
| Italics | | 
| Underline | | 
| Increase Text Size< | | 
| Change Fonts | | 
| Change Text Color | | 
| Insert Image | | 
| Add Hyperlink |