phpmailer shows "email could not be sent, try again later"

[john2715]

bro i need a help im a student now im using ur login register code.
now register, login code works perfectly but mail doesn't send ("email could not be sent, try again later" )
how to solve this problem

[Muhammad Saad]

I would recommend looking at this closed issue:

#10

This concerns the same problems with sending emails and the proper setup for configuring them