external email server provider for my vps accounts

Hello. I have a problem. I have a new vps without administrator panel, only with LAMP installation. I am not going to setup email server functions on my vps, I prefer to have this issues separated (besides of this, inthis way I avoid my email are markes as spam), therefore I want to use a external provider for smtp sender, but the problem is what the passwords are visibles on configutarion.php files (joomla for example), and it is a bit dangerous. Besides, I do not know which better external provider for this situation. I am thinking to use alias with outlook free account by the moment, but i am not sure about this. Maybe, I must to install a email server on another vps? Any suggests? thanks

 

 

 

 

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