Wait...I missed this. How in the hell did someone legitimately believe that personalized emails or letter were illegal?? What do you think coaches send kids? It's not only not illegal - it is a huge part of the recruiting process. If it were illegal than pretty much every coach at every school would be in trouble. Kids post these things on social media ALL THE TIME too so go check it out for yourself if you don't believe me.
/END RANT
Pretty sure that general correspondence with a recruit has to be:
On college letterhead
Must be a 8 1/2 X 11 single sheet of paper
Content/design on single sheet of paper is not restricted
Any additional sheets must be on plain white paper, text may be typed or handwritten, but color is not allowed
Any attachments must be on plain white (8.5 X 11) paper and blue/black ink. No color.
Also, I am pretty sure email/twitter/facebook correspondence cannot be personalized like that. I think recruiters are very limited on how they can contact a recruit electronically.
NCAA likes things old-school, via the USPS, and that is limited in #, and it must be mailed in a plain envelope with only one school identifier on the outside.
Schools violate all the time, but that is a violation.
If a kid gets a game program (they are allowed one), any posters or promotional items have to be removed.