SMARTPHONE READING E-MAILS

Just as I thought.  My new smartphone, in some instances, won't show me my whole e-mail, even with a larger screen.  My old cell phone did the same thing.  This new cell phone will give you the title and who sent the e-mail, but when it comes to large data, it just tells you that the program inside the phone is not supported to do this.  Only large data files are eliminated, i.e., PDF files only so far.