Q:

Joomla 3.3 modules not sending e-mails to different domains

I'm trying to confugure a contact form module to send the forms to custom e-mails other than the administrator's, wich is from the same domain as Joomla installation. 
When I configure the module to send to administrator's e-mail, it works fine.  However when I input other e-mail adresses from different domains to be the recipient, the e-mail isn't sent. 
I already tested with Breezing Forms and B2J Contact, and this problem happened with both of them so I suppose it's a Joomla configuration problem.  Using B2J Contact allows me to add two e-mail recipients, so I tested using the administrator's as main and the other from a different domain as copy, and I receive the e-mail only on the main recipient. 
I'm using PHP Mail as the send method and my Joomla version is 3.3.0. 
I've been researching for days and can't seem to find a solution. 
Any help would be much appreciated. 

A:

I solved this problem by changing the send mail method to SMTP and placing the right port number, which I got from my host provider.