make an extension take only .edu emails for registering - Joomla! Forum - community, help and support

i designing job site client , using joombri, extension freelance jobs. nice extension , support fine did not answer question specifically, , said need change code.

my client needs have job seekers able register .edu email address, , have , other emails error , not let them sign up.

i need know folder/file edit or @ least code might like, , place where. did research found lot of instructions not joomla , nervous this. here type of codes , answers found . . . assume answers here similar. don't know php , starting scratch here saying code , not saying put not work me. has complete instruction.


this need done server-side (as whatever doing notify user on client-side).
use regular expression like
if (preg_match('/@.*\.edu$/', $email)) {



any @ . . . thanks!

i surprised @ number of views , no replies. can @ least shed light on why no 1 post reply?

these "replies" have posted within question not replies joomla. found them on other sites different platforms use php question remains.

what code , placed? know not difficult . . . couple of minutes of work, when novice not know file go . .well can understand.

i not need know files need edited exact lines place code after.

thanks much!