I am developing in PHP a system that sends email to the address that the user provides.
The program returns true when I use the function mail() , I did tests sending emails to the domain gmail ie [email protected] but when I try to send emails to another domain the emails do not arrive, the email is sent as I mentioned above but the email It never comes.
Where can the problem come from? of my server is hosted in 000webhost free version, previously was in free edition awardspace but also in the latter directly the emails were not sent