What materials should be sent to a potential LP via email aside from the investment deck?

Send them as little info as possible. The goal of the email is to get the meeting. You can’t close a deal over email. The more info you send - the more opportunities for the person to say no. If you know the LP well, just write a 2 sentence email to get them on a Zoom. If you don’t get a 2nd degree connector to send a  email for you which includes a few stats and maybe a teaser deck that has like 4 slides.